Home / 12,307,834.40-18,478,372.80-7,195,503.20

Finding the Fourth Proportional to 12,307,834.40, 18,478,372.80 and 7,195,503.20

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Solution

The fourth proportional to 12,307,834.40, 18,478,372.80 and 7,195,503.20 is: 10,802,972.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,307,834.40 : 18,478,372.80 = 7,195,503.20 : x
  2. Step 2: Convert to fraction form
    12,307,834.40/18,478,372.80 = 7,195,503.20/x
  3. Step 3: Cross multiply
    12,307,834.40x = 18,478,372.80 × 7,195,503.20
  4. Step 4: Simplify right side
    12,307,834.40x = 132,961,190,613,192.97
  5. Step 5: Solve for x
    x = 132,961,190,613,192.97/12,307,834.40
  6. Step 6: Final answer
    x = 10,802,972.02

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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.