Home / 42,005,124.60-63,007,686.90-18,117,252.60

Finding the Fourth Proportional to 42,005,124.60, 63,007,686.90 and 18,117,252.60

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Solution

The fourth proportional to 42,005,124.60, 63,007,686.90 and 18,117,252.60 is: 27,175,878.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,005,124.60 : 63,007,686.90 = 18,117,252.60 : x
  2. Step 2: Convert to fraction form
    42,005,124.60/63,007,686.90 = 18,117,252.60/x
  3. Step 3: Cross multiply
    42,005,124.60x = 63,007,686.90 × 18,117,252.60
  4. Step 4: Simplify right side
    42,005,124.60x = 1,141,526,179,309,011
  5. Step 5: Solve for x
    x = 1,141,526,179,309,011/42,005,124.60
  6. Step 6: Final answer
    x = 27,175,878.90

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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.