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Finding the Fourth Proportional to 18,101,679.12, 24,980,807.03 and 9,842,295.93

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Solution

The fourth proportional to 18,101,679.12, 24,980,807.03 and 9,842,295.93 is: 13,582,634.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,101,679.12 : 24,980,807.03 = 9,842,295.93 : x
  2. Step 2: Convert to fraction form
    18,101,679.12/24,980,807.03 = 9,842,295.93/x
  3. Step 3: Cross multiply
    18,101,679.12x = 24,980,807.03 × 9,842,295.93
  4. Step 4: Simplify right side
    18,101,679.12x = 245,868,495,359,484.41
  5. Step 5: Solve for x
    x = 245,868,495,359,484.41/18,101,679.12
  6. Step 6: Final answer
    x = 13,582,634.72

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.