Home / 1,319,361,744.40-1,977,782,904.60-490,093,334.80

Finding the Fourth Proportional to 1,319,361,744.40, 1,977,782,904.60 and 490,093,334.80

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Solution

The fourth proportional to 1,319,361,744.40, 1,977,782,904.60 and 490,093,334.80 is: 734,672,066.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,319,361,744.40 : 1,977,782,904.60 = 490,093,334.80 : x
  2. Step 2: Convert to fraction form
    1,319,361,744.40/1,977,782,904.60 = 490,093,334.80/x
  3. Step 3: Cross multiply
    1,319,361,744.40x = 1,977,782,904.60 × 490,093,334.80
  4. Step 4: Simplify right side
    1,319,361,744.40x = 969,298,219,225,844,224
  5. Step 5: Solve for x
    x = 969,298,219,225,844,224/1,319,361,744.40
  6. Step 6: Final answer
    x = 734,672,066.50

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Half scale
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Double scale
Find fourth proportional to 1,319,361,745.40, 1,977,782,906.10 and 490,093,335.80
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.