Home / 40,284,224.91-60,438,128.72-12,989,968.74

Finding the Fourth Proportional to 40,284,224.91, 60,438,128.72 and 12,989,968.74

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Solution

The fourth proportional to 40,284,224.91, 60,438,128.72 and 12,989,968.74 is: 19,488,755.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,284,224.91 : 60,438,128.72 = 12,989,968.74 : x
  2. Step 2: Convert to fraction form
    40,284,224.91/60,438,128.72 = 12,989,968.74/x
  3. Step 3: Cross multiply
    40,284,224.91x = 60,438,128.72 × 12,989,968.74
  4. Step 4: Simplify right side
    40,284,224.91x = 785,089,402,711,946.38
  5. Step 5: Solve for x
    x = 785,089,402,711,946.38/40,284,224.91
  6. Step 6: Final answer
    x = 19,488,755.32

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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.