Home / 178,325,712-267,573,099.84-86,157,784.32

Finding the Fourth Proportional to 178,325,712, 267,573,099.84 and 86,157,784.32

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Solution

The fourth proportional to 178,325,712, 267,573,099.84 and 86,157,784.32 is: 129,277,517.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,325,712 : 267,573,099.84 = 86,157,784.32 : x
  2. Step 2: Convert to fraction form
    178,325,712/267,573,099.84 = 86,157,784.32/x
  3. Step 3: Cross multiply
    178,325,712x = 267,573,099.84 × 86,157,784.32
  4. Step 4: Simplify right side
    178,325,712x = 23,053,505,425,848,544
  5. Step 5: Solve for x
    x = 23,053,505,425,848,544/178,325,712
  6. Step 6: Final answer
    x = 129,277,517.90

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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.