Home / 81,478,799.59-112,736,831.01-71,046,569.71

Finding the Fourth Proportional to 81,478,799.59, 112,736,831.01 and 71,046,569.71

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Solution

The fourth proportional to 81,478,799.59, 112,736,831.01 and 71,046,569.71 is: 98,302,443.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,478,799.59 : 112,736,831.01 = 71,046,569.71 : x
  2. Step 2: Convert to fraction form
    81,478,799.59/112,736,831.01 = 71,046,569.71/x
  3. Step 3: Cross multiply
    81,478,799.59x = 112,736,831.01 × 71,046,569.71
  4. Step 4: Simplify right side
    81,478,799.59x = 8,009,565,123,236,454
  5. Step 5: Solve for x
    x = 8,009,565,123,236,454/81,478,799.59
  6. Step 6: Final answer
    x = 98,302,443.87

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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.