Home / 12,298,916.90-18,448,375.35-7,831,000.10

Finding the Fourth Proportional to 12,298,916.90, 18,448,375.35 and 7,831,000.10

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Solution

The fourth proportional to 12,298,916.90, 18,448,375.35 and 7,831,000.10 is: 11,746,500.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,298,916.90 : 18,448,375.35 = 7,831,000.10 : x
  2. Step 2: Convert to fraction form
    12,298,916.90/18,448,375.35 = 7,831,000.10/x
  3. Step 3: Cross multiply
    12,298,916.90x = 18,448,375.35 × 7,831,000.10
  4. Step 4: Simplify right side
    12,298,916.90x = 144,469,229,210,687.53
  5. Step 5: Solve for x
    x = 144,469,229,210,687.53/12,298,916.90
  6. Step 6: Final answer
    x = 11,746,500.15

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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.