Home / 85,235,966.55-117,657,620.42-55,869,190.47

Finding the Fourth Proportional to 85,235,966.55, 117,657,620.42 and 55,869,190.47

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Solution

The fourth proportional to 85,235,966.55, 117,657,620.42 and 55,869,190.47 is: 77,120,448.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,235,966.55 : 117,657,620.42 = 55,869,190.47 : x
  2. Step 2: Convert to fraction form
    85,235,966.55/117,657,620.42 = 55,869,190.47/x
  3. Step 3: Cross multiply
    85,235,966.55x = 117,657,620.42 × 55,869,190.47
  4. Step 4: Simplify right side
    85,235,966.55x = 6,573,436,005,212,596
  5. Step 5: Solve for x
    x = 6,573,436,005,212,596/85,235,966.55
  6. Step 6: Final answer
    x = 77,120,448.93

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.