Home / 8,689,437.61-11,990,629.36-5,156,626.15

Finding the Fourth Proportional to 8,689,437.61, 11,990,629.36 and 5,156,626.15

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Solution

The fourth proportional to 8,689,437.61, 11,990,629.36 and 5,156,626.15 is: 7,115,672.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,689,437.61 : 11,990,629.36 = 5,156,626.15 : x
  2. Step 2: Convert to fraction form
    8,689,437.61/11,990,629.36 = 5,156,626.15/x
  3. Step 3: Cross multiply
    8,689,437.61x = 11,990,629.36 × 5,156,626.15
  4. Step 4: Simplify right side
    8,689,437.61x = 61,831,192,934,172.62
  5. Step 5: Solve for x
    x = 61,831,192,934,172.62/8,689,437.61
  6. Step 6: Final answer
    x = 7,115,672.58

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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.