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Finding the Fourth Proportional to 265,720,902.30, 398,581,353.45 and 265,720,902.30

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Solution

The fourth proportional to 265,720,902.30, 398,581,353.45 and 265,720,902.30 is: 398,581,353.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,720,902.30 : 398,581,353.45 = 265,720,902.30 : x
  2. Step 2: Convert to fraction form
    265,720,902.30/398,581,353.45 = 265,720,902.30/x
  3. Step 3: Cross multiply
    265,720,902.30x = 398,581,353.45 × 265,720,902.30
  4. Step 4: Simplify right side
    265,720,902.30x = 105,911,396,878,689,216
  5. Step 5: Solve for x
    x = 105,911,396,878,689,216/265,720,902.30
  6. Step 6: Final answer
    x = 398,581,353.45

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