Home / 280,084,272.73-386,516,831.24-154,636,711.36

Finding the Fourth Proportional to 280,084,272.73, 386,516,831.24 and 154,636,711.36

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Solution

The fourth proportional to 280,084,272.73, 386,516,831.24 and 154,636,711.36 is: 213,398,956.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,084,272.73 : 386,516,831.24 = 154,636,711.36 : x
  2. Step 2: Convert to fraction form
    280,084,272.73/386,516,831.24 = 154,636,711.36/x
  3. Step 3: Cross multiply
    280,084,272.73x = 386,516,831.24 × 154,636,711.36
  4. Step 4: Simplify right side
    280,084,272.73x = 59,769,691,668,241,720
  5. Step 5: Solve for x
    x = 59,769,691,668,241,720/280,084,272.73
  6. Step 6: Final answer
    x = 213,398,956.98

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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.