Home / 13,488,363.80-20,232,545.70-12,071,187.80

Finding the Fourth Proportional to 13,488,363.80, 20,232,545.70 and 12,071,187.80

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Solution

The fourth proportional to 13,488,363.80, 20,232,545.70 and 12,071,187.80 is: 18,106,781.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,488,363.80 : 20,232,545.70 = 12,071,187.80 : x
  2. Step 2: Convert to fraction form
    13,488,363.80/20,232,545.70 = 12,071,187.80/x
  3. Step 3: Cross multiply
    13,488,363.80x = 20,232,545.70 × 12,071,187.80
  4. Step 4: Simplify right side
    13,488,363.80x = 244,230,858,816,782.47
  5. Step 5: Solve for x
    x = 244,230,858,816,782.47/13,488,363.80
  6. Step 6: Final answer
    x = 18,106,781.70

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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.