Home / 12,461,349.60-18,693,336.96-5,173,981.92

Finding the Fourth Proportional to 12,461,349.60, 18,693,336.96 and 5,173,981.92

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Solution

The fourth proportional to 12,461,349.60, 18,693,336.96 and 5,173,981.92 is: 7,761,517.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,461,349.60 : 18,693,336.96 = 5,173,981.92 : x
  2. Step 2: Convert to fraction form
    12,461,349.60/18,693,336.96 = 5,173,981.92/x
  3. Step 3: Cross multiply
    12,461,349.60x = 18,693,336.96 × 5,173,981.92
  4. Step 4: Simplify right side
    12,461,349.60x = 96,718,987,455,507.77
  5. Step 5: Solve for x
    x = 96,718,987,455,507.77/12,461,349.60
  6. Step 6: Final answer
    x = 7,761,517.86

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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.