Home / 809,692,709.10-1,214,539,063.65-503,582,693.10

Finding the Fourth Proportional to 809,692,709.10, 1,214,539,063.65 and 503,582,693.10

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Solution

The fourth proportional to 809,692,709.10, 1,214,539,063.65 and 503,582,693.10 is: 755,374,039.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,692,709.10 : 1,214,539,063.65 = 503,582,693.10 : x
  2. Step 2: Convert to fraction form
    809,692,709.10/1,214,539,063.65 = 503,582,693.10/x
  3. Step 3: Cross multiply
    809,692,709.10x = 1,214,539,063.65 × 503,582,693.10
  4. Step 4: Simplify right side
    809,692,709.10x = 611,620,852,548,019,456
  5. Step 5: Solve for x
    x = 611,620,852,548,019,456/809,692,709.10
  6. Step 6: Final answer
    x = 755,374,039.65

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Half scale
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Double scale
Find fourth proportional to 809,692,710.10, 1,214,539,065.15 and 503,582,694.10
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.