Home / 123,644,562.40-185,487,838.80-66,121,213.60

Finding the Fourth Proportional to 123,644,562.40, 185,487,838.80 and 66,121,213.60

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Solution

The fourth proportional to 123,644,562.40, 185,487,838.80 and 66,121,213.60 is: 99,193,047.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,644,562.40 : 185,487,838.80 = 66,121,213.60 : x
  2. Step 2: Convert to fraction form
    123,644,562.40/185,487,838.80 = 66,121,213.60/x
  3. Step 3: Cross multiply
    123,644,562.40x = 185,487,838.80 × 66,121,213.60
  4. Step 4: Simplify right side
    123,644,562.40x = 12,264,681,009,497,168
  5. Step 5: Solve for x
    x = 12,264,681,009,497,168/123,644,562.40
  6. Step 6: Final answer
    x = 99,193,047.97

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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.