Home / 28,420,545.60-42,581,829.60-13,243,348.80

Finding the Fourth Proportional to 28,420,545.60, 42,581,829.60 and 13,243,348.80

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Solution

The fourth proportional to 28,420,545.60, 42,581,829.60 and 13,243,348.80 is: 19,842,195.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,420,545.60 : 42,581,829.60 = 13,243,348.80 : x
  2. Step 2: Convert to fraction form
    28,420,545.60/42,581,829.60 = 13,243,348.80/x
  3. Step 3: Cross multiply
    28,420,545.60x = 42,581,829.60 × 13,243,348.80
  4. Step 4: Simplify right side
    28,420,545.60x = 563,926,021,934,964.50
  5. Step 5: Solve for x
    x = 563,926,021,934,964.50/28,420,545.60
  6. Step 6: Final answer
    x = 19,842,195.50

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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.