Home / 509,966,712.90-764,950,069.35-165,167,792.10

Finding the Fourth Proportional to 509,966,712.90, 764,950,069.35 and 165,167,792.10

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Solution

The fourth proportional to 509,966,712.90, 764,950,069.35 and 165,167,792.10 is: 247,751,688.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,966,712.90 : 764,950,069.35 = 165,167,792.10 : x
  2. Step 2: Convert to fraction form
    509,966,712.90/764,950,069.35 = 165,167,792.10/x
  3. Step 3: Cross multiply
    509,966,712.90x = 764,950,069.35 × 165,167,792.10
  4. Step 4: Simplify right side
    509,966,712.90x = 126,345,114,021,281,376
  5. Step 5: Solve for x
    x = 126,345,114,021,281,376/509,966,712.90
  6. Step 6: Final answer
    x = 247,751,688.15

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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.