Home / 105,969,545.60-158,954,318.40-99,698,979.20

Finding the Fourth Proportional to 105,969,545.60, 158,954,318.40 and 99,698,979.20

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Solution

The fourth proportional to 105,969,545.60, 158,954,318.40 and 99,698,979.20 is: 149,548,468.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,969,545.60 : 158,954,318.40 = 99,698,979.20 : x
  2. Step 2: Convert to fraction form
    105,969,545.60/158,954,318.40 = 99,698,979.20/x
  3. Step 3: Cross multiply
    105,969,545.60x = 158,954,318.40 × 99,698,979.20
  4. Step 4: Simplify right side
    105,969,545.60x = 15,847,583,283,911,778
  5. Step 5: Solve for x
    x = 15,847,583,283,911,778/105,969,545.60
  6. Step 6: Final answer
    x = 149,548,468.80

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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.