Home / 87,843,027.15-121,152,693.51-77,223,711.42

Finding the Fourth Proportional to 87,843,027.15, 121,152,693.51 and 77,223,711.42

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Solution

The fourth proportional to 87,843,027.15, 121,152,693.51 and 77,223,711.42 is: 106,506,582.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,843,027.15 : 121,152,693.51 = 77,223,711.42 : x
  2. Step 2: Convert to fraction form
    87,843,027.15/121,152,693.51 = 77,223,711.42/x
  3. Step 3: Cross multiply
    87,843,027.15x = 121,152,693.51 × 77,223,711.42
  4. Step 4: Simplify right side
    87,843,027.15x = 9,355,860,641,371,948
  5. Step 5: Solve for x
    x = 9,355,860,641,371,948/87,843,027.15
  6. Step 6: Final answer
    x = 106,506,582.76

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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.