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Finding the Fourth Proportional to 68,257,117.60, 102,441,663.60 and 66,017,629.60

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Solution

The fourth proportional to 68,257,117.60, 102,441,663.60 and 66,017,629.60 is: 99,080,594.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,257,117.60 : 102,441,663.60 = 66,017,629.60 : x
  2. Step 2: Convert to fraction form
    68,257,117.60/102,441,663.60 = 66,017,629.60/x
  3. Step 3: Cross multiply
    68,257,117.60x = 102,441,663.60 × 66,017,629.60
  4. Step 4: Simplify right side
    68,257,117.60x = 6,762,955,803,152,602
  5. Step 5: Solve for x
    x = 6,762,955,803,152,602/68,257,117.60
  6. Step 6: Final answer
    x = 99,080,594.68

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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.