Home / 18,711,545.60-28,067,318.40-9,133,068.80

Finding the Fourth Proportional to 18,711,545.60, 28,067,318.40 and 9,133,068.80

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Solution

The fourth proportional to 18,711,545.60, 28,067,318.40 and 9,133,068.80 is: 13,699,603.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,711,545.60 : 28,067,318.40 = 9,133,068.80 : x
  2. Step 2: Convert to fraction form
    18,711,545.60/28,067,318.40 = 9,133,068.80/x
  3. Step 3: Cross multiply
    18,711,545.60x = 28,067,318.40 × 9,133,068.80
  4. Step 4: Simplify right side
    18,711,545.60x = 256,340,749,978,705.94
  5. Step 5: Solve for x
    x = 256,340,749,978,705.94/18,711,545.60
  6. Step 6: Final answer
    x = 13,699,603.20

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1.5x scale

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.