Home / 66,545,312.60-99,817,968.90-40,679,226.20

Finding the Fourth Proportional to 66,545,312.60, 99,817,968.90 and 40,679,226.20

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Solution

The fourth proportional to 66,545,312.60, 99,817,968.90 and 40,679,226.20 is: 61,018,839.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,545,312.60 : 99,817,968.90 = 40,679,226.20 : x
  2. Step 2: Convert to fraction form
    66,545,312.60/99,817,968.90 = 40,679,226.20/x
  3. Step 3: Cross multiply
    66,545,312.60x = 99,817,968.90 × 40,679,226.20
  4. Step 4: Simplify right side
    66,545,312.60x = 4,060,517,735,707,665.50
  5. Step 5: Solve for x
    x = 4,060,517,735,707,665.50/66,545,312.60
  6. Step 6: Final answer
    x = 61,018,839.30

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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.