Home / 68,725,968.30-103,088,952.45-66,080,573.10

Finding the Fourth Proportional to 68,725,968.30, 103,088,952.45 and 66,080,573.10

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Solution

The fourth proportional to 68,725,968.30, 103,088,952.45 and 66,080,573.10 is: 99,120,859.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,725,968.30 : 103,088,952.45 = 66,080,573.10 : x
  2. Step 2: Convert to fraction form
    68,725,968.30/103,088,952.45 = 66,080,573.10/x
  3. Step 3: Cross multiply
    68,725,968.30x = 103,088,952.45 × 66,080,573.10
  4. Step 4: Simplify right side
    68,725,968.30x = 6,812,177,058,174,649
  5. Step 5: Solve for x
    x = 6,812,177,058,174,649/68,725,968.30
  6. Step 6: Final answer
    x = 99,120,859.65

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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.