Home / 663,127,832.61-915,119,254.02-361,719,712.56

Finding the Fourth Proportional to 663,127,832.61, 915,119,254.02 and 361,719,712.56

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Solution

The fourth proportional to 663,127,832.61, 915,119,254.02 and 361,719,712.56 is: 499,174,755.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,127,832.61 : 915,119,254.02 = 361,719,712.56 : x
  2. Step 2: Convert to fraction form
    663,127,832.61/915,119,254.02 = 361,719,712.56/x
  3. Step 3: Cross multiply
    663,127,832.61x = 915,119,254.02 × 361,719,712.56
  4. Step 4: Simplify right side
    663,127,832.61x = 331,016,673,522,236,032
  5. Step 5: Solve for x
    x = 331,016,673,522,236,032/663,127,832.61
  6. Step 6: Final answer
    x = 499,174,755.22

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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.