Home / 641,522,831.43-885,301,875.72-348,167,399.43

Finding the Fourth Proportional to 641,522,831.43, 885,301,875.72 and 348,167,399.43

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Solution

The fourth proportional to 641,522,831.43, 885,301,875.72 and 348,167,399.43 is: 480,471,211.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,522,831.43 : 885,301,875.72 = 348,167,399.43 : x
  2. Step 2: Convert to fraction form
    641,522,831.43/885,301,875.72 = 348,167,399.43/x
  3. Step 3: Cross multiply
    641,522,831.43x = 885,301,875.72 × 348,167,399.43
  4. Step 4: Simplify right side
    641,522,831.43x = 308,233,251,779,933,504
  5. Step 5: Solve for x
    x = 308,233,251,779,933,504/641,522,831.43
  6. Step 6: Final answer
    x = 480,471,211.12

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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.