Home / 12,138,119.04-18,209,802.96-6,457,517.76

Finding the Fourth Proportional to 12,138,119.04, 18,209,802.96 and 6,457,517.76

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Solution

The fourth proportional to 12,138,119.04, 18,209,802.96 and 6,457,517.76 is: 9,687,672.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,138,119.04 : 18,209,802.96 = 6,457,517.76 : x
  2. Step 2: Convert to fraction form
    12,138,119.04/18,209,802.96 = 6,457,517.76/x
  3. Step 3: Cross multiply
    12,138,119.04x = 18,209,802.96 × 6,457,517.76
  4. Step 4: Simplify right side
    12,138,119.04x = 117,590,126,020,300.58
  5. Step 5: Solve for x
    x = 117,590,126,020,300.58/12,138,119.04
  6. Step 6: Final answer
    x = 9,687,672.83

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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.