Home / 107,854,411.20-161,781,616.80-77,621,323.20

Finding the Fourth Proportional to 107,854,411.20, 161,781,616.80 and 77,621,323.20

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Solution

The fourth proportional to 107,854,411.20, 161,781,616.80 and 77,621,323.20 is: 116,431,984.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,854,411.20 : 161,781,616.80 = 77,621,323.20 : x
  2. Step 2: Convert to fraction form
    107,854,411.20/161,781,616.80 = 77,621,323.20/x
  3. Step 3: Cross multiply
    107,854,411.20x = 161,781,616.80 × 77,621,323.20
  4. Step 4: Simplify right side
    107,854,411.20x = 12,557,703,165,451,352
  5. Step 5: Solve for x
    x = 12,557,703,165,451,352/107,854,411.20
  6. Step 6: Final answer
    x = 116,431,984.80

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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.