Home / 83,015,703.70-124,187,632.35-72,938,007.70

Finding the Fourth Proportional to 83,015,703.70, 124,187,632.35 and 72,938,007.70

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Solution

The fourth proportional to 83,015,703.70, 124,187,632.35 and 72,938,007.70 is: 109,111,867.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,015,703.70 : 124,187,632.35 = 72,938,007.70 : x
  2. Step 2: Convert to fraction form
    83,015,703.70/124,187,632.35 = 72,938,007.70/x
  3. Step 3: Cross multiply
    83,015,703.70x = 124,187,632.35 × 72,938,007.70
  4. Step 4: Simplify right side
    83,015,703.70x = 9,057,998,484,589,070
  5. Step 5: Solve for x
    x = 9,057,998,484,589,070/83,015,703.70
  6. Step 6: Final answer
    x = 109,111,867.77

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.