Home / 78,256,274.40-117,407,130.57-31,545,654.16

Finding the Fourth Proportional to 78,256,274.40, 117,407,130.57 and 31,545,654.16

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Solution

The fourth proportional to 78,256,274.40, 117,407,130.57 and 31,545,654.16 is: 47,327,639.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,256,274.40 : 117,407,130.57 = 31,545,654.16 : x
  2. Step 2: Convert to fraction form
    78,256,274.40/117,407,130.57 = 31,545,654.16/x
  3. Step 3: Cross multiply
    78,256,274.40x = 117,407,130.57 × 31,545,654.16
  4. Step 4: Simplify right side
    78,256,274.40x = 3,703,684,737,091,906.50
  5. Step 5: Solve for x
    x = 3,703,684,737,091,906.50/78,256,274.40
  6. Step 6: Final answer
    x = 47,327,639.42

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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.