Home / 1,038,318,645.35-1,432,879,800.48-568,419,966.30

Finding the Fourth Proportional to 1,038,318,645.35, 1,432,879,800.48 and 568,419,966.30

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Solution

The fourth proportional to 1,038,318,645.35, 1,432,879,800.48 and 568,419,966.30 is: 784,419,591.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,038,318,645.35 : 1,432,879,800.48 = 568,419,966.30 : x
  2. Step 2: Convert to fraction form
    1,038,318,645.35/1,432,879,800.48 = 568,419,966.30/x
  3. Step 3: Cross multiply
    1,038,318,645.35x = 1,432,879,800.48 × 568,419,966.30
  4. Step 4: Simplify right side
    1,038,318,645.35x = 814,477,487,900,792,320
  5. Step 5: Solve for x
    x = 814,477,487,900,792,320/1,038,318,645.35
  6. Step 6: Final answer
    x = 784,419,591.76

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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.