Home / 15,516,379.65-21,412,602.42-8,993,792.53

Finding the Fourth Proportional to 15,516,379.65, 21,412,602.42 and 8,993,792.53

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Solution

The fourth proportional to 15,516,379.65, 21,412,602.42 and 8,993,792.53 is: 12,411,432.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,516,379.65 : 21,412,602.42 = 8,993,792.53 : x
  2. Step 2: Convert to fraction form
    15,516,379.65/21,412,602.42 = 8,993,792.53/x
  3. Step 3: Cross multiply
    15,516,379.65x = 21,412,602.42 × 8,993,792.53
  4. Step 4: Simplify right side
    15,516,379.65x = 192,580,503,685,894.97
  5. Step 5: Solve for x
    x = 192,580,503,685,894.97/15,516,379.65
  6. Step 6: Final answer
    x = 12,411,432.82

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.