Home / 134,868,132.71-186,118,020.83-72,988,471.28

Finding the Fourth Proportional to 134,868,132.71, 186,118,020.83 and 72,988,471.28

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Solution

The fourth proportional to 134,868,132.71, 186,118,020.83 and 72,988,471.28 is: 100,724,089.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,868,132.71 : 186,118,020.83 = 72,988,471.28 : x
  2. Step 2: Convert to fraction form
    134,868,132.71/186,118,020.83 = 72,988,471.28/x
  3. Step 3: Cross multiply
    134,868,132.71x = 186,118,020.83 × 72,988,471.28
  4. Step 4: Simplify right side
    134,868,132.71x = 13,584,469,817,292,780
  5. Step 5: Solve for x
    x = 13,584,469,817,292,780/134,868,132.71
  6. Step 6: Final answer
    x = 100,724,089.11

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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.