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Finding the Fourth Proportional to 68,952,858.30, 103,429,287.45 and 60,449,802.30

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Solution

The fourth proportional to 68,952,858.30, 103,429,287.45 and 60,449,802.30 is: 90,674,703.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,952,858.30 : 103,429,287.45 = 60,449,802.30 : x
  2. Step 2: Convert to fraction form
    68,952,858.30/103,429,287.45 = 60,449,802.30/x
  3. Step 3: Cross multiply
    68,952,858.30x = 103,429,287.45 × 60,449,802.30
  4. Step 4: Simplify right side
    68,952,858.30x = 6,252,279,978,382,371
  5. Step 5: Solve for x
    x = 6,252,279,978,382,371/68,952,858.30
  6. Step 6: Final answer
    x = 90,674,703.45

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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.