Home / 42,580,389.79-63,869,662.47-11,874,149.78

Finding the Fourth Proportional to 42,580,389.79, 63,869,662.47 and 11,874,149.78

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Solution

The fourth proportional to 42,580,389.79, 63,869,662.47 and 11,874,149.78 is: 17,810,967.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,580,389.79 : 63,869,662.47 = 11,874,149.78 : x
  2. Step 2: Convert to fraction form
    42,580,389.79/63,869,662.47 = 11,874,149.78/x
  3. Step 3: Cross multiply
    42,580,389.79x = 63,869,662.47 × 11,874,149.78
  4. Step 4: Simplify right side
    42,580,389.79x = 758,397,938,566,824.75
  5. Step 5: Solve for x
    x = 758,397,938,566,824.75/42,580,389.79
  6. Step 6: Final answer
    x = 17,810,967.50

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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.