Home / 120,344,172.42-180,114,032.67-68,514,861.30

Finding the Fourth Proportional to 120,344,172.42, 180,114,032.67 and 68,514,861.30

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Solution

The fourth proportional to 120,344,172.42, 180,114,032.67 and 68,514,861.30 is: 102,543,294.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,344,172.42 : 180,114,032.67 = 68,514,861.30 : x
  2. Step 2: Convert to fraction form
    120,344,172.42/180,114,032.67 = 68,514,861.30/x
  3. Step 3: Cross multiply
    120,344,172.42x = 180,114,032.67 × 68,514,861.30
  4. Step 4: Simplify right side
    120,344,172.42x = 12,340,487,966,568,718
  5. Step 5: Solve for x
    x = 12,340,487,966,568,718/120,344,172.42
  6. Step 6: Final answer
    x = 102,543,294.94

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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.