Home / 66,545,309.60-99,817,964.40-40,679,223.20

Finding the Fourth Proportional to 66,545,309.60, 99,817,964.40 and 40,679,223.20

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Solution

The fourth proportional to 66,545,309.60, 99,817,964.40 and 40,679,223.20 is: 61,018,834.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,545,309.60 : 99,817,964.40 = 40,679,223.20 : x
  2. Step 2: Convert to fraction form
    66,545,309.60/99,817,964.40 = 40,679,223.20/x
  3. Step 3: Cross multiply
    66,545,309.60x = 99,817,964.40 × 40,679,223.20
  4. Step 4: Simplify right side
    66,545,309.60x = 4,060,517,253,197,254.50
  5. Step 5: Solve for x
    x = 4,060,517,253,197,254.50/66,545,309.60
  6. Step 6: Final answer
    x = 61,018,834.80

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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.