Home / 689,200,831.28-951,100,104.12-375,941,871.92

Finding the Fourth Proportional to 689,200,831.28, 951,100,104.12 and 375,941,871.92

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Solution

The fourth proportional to 689,200,831.28, 951,100,104.12 and 375,941,871.92 is: 518,801,396.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,200,831.28 : 951,100,104.12 = 375,941,871.92 : x
  2. Step 2: Convert to fraction form
    689,200,831.28/951,100,104.12 = 375,941,871.92/x
  3. Step 3: Cross multiply
    689,200,831.28x = 951,100,104.12 × 375,941,871.92
  4. Step 4: Simplify right side
    689,200,831.28x = 357,558,353,526,179,712
  5. Step 5: Solve for x
    x = 357,558,353,526,179,712/689,200,831.28
  6. Step 6: Final answer
    x = 518,801,396.19

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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.