Home / 68,808,840.30-103,213,260.45-66,163,445.10

Finding the Fourth Proportional to 68,808,840.30, 103,213,260.45 and 66,163,445.10

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Solution

The fourth proportional to 68,808,840.30, 103,213,260.45 and 66,163,445.10 is: 99,245,167.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,808,840.30 : 103,213,260.45 = 66,163,445.10 : x
  2. Step 2: Convert to fraction form
    68,808,840.30/103,213,260.45 = 66,163,445.10/x
  3. Step 3: Cross multiply
    68,808,840.30x = 103,213,260.45 × 66,163,445.10
  4. Step 4: Simplify right side
    68,808,840.30x = 6,828,944,891,375,577
  5. Step 5: Solve for x
    x = 6,828,944,891,375,577/68,808,840.30
  6. Step 6: Final answer
    x = 99,245,167.65

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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.