Home / 1,365,355,187.40-1,884,193,433.85-738,830,338.32

Finding the Fourth Proportional to 1,365,355,187.40, 1,884,193,433.85 and 738,830,338.32

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Solution

The fourth proportional to 1,365,355,187.40, 1,884,193,433.85 and 738,830,338.32 is: 1,019,587,639.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,365,355,187.40 : 1,884,193,433.85 = 738,830,338.32 : x
  2. Step 2: Convert to fraction form
    1,365,355,187.40/1,884,193,433.85 = 738,830,338.32/x
  3. Step 3: Cross multiply
    1,365,355,187.40x = 1,884,193,433.85 × 738,830,338.32
  4. Step 4: Simplify right side
    1,365,355,187.40x = 1,392,099,272,191,718,144
  5. Step 5: Solve for x
    x = 1,392,099,272,191,718,144/1,365,355,187.40
  6. Step 6: Final answer
    x = 1,019,587,639.20

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.