Home / 103,347,165.40-155,020,748.10-51,691,100.20

Finding the Fourth Proportional to 103,347,165.40, 155,020,748.10 and 51,691,100.20

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Solution

The fourth proportional to 103,347,165.40, 155,020,748.10 and 51,691,100.20 is: 77,536,650.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,347,165.40 : 155,020,748.10 = 51,691,100.20 : x
  2. Step 2: Convert to fraction form
    103,347,165.40/155,020,748.10 = 51,691,100.20/x
  3. Step 3: Cross multiply
    103,347,165.40x = 155,020,748.10 × 51,691,100.20
  4. Step 4: Simplify right side
    103,347,165.40x = 8,013,193,023,116,060
  5. Step 5: Solve for x
    x = 8,013,193,023,116,060/103,347,165.40
  6. Step 6: Final answer
    x = 77,536,650.30

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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.