Home / 91,511,120.52-137,289,915.02-42,362,407.08

Finding the Fourth Proportional to 91,511,120.52, 137,289,915.02 and 42,362,407.08

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Solution

The fourth proportional to 91,511,120.52, 137,289,915.02 and 42,362,407.08 is: 63,554,366.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,511,120.52 : 137,289,915.02 = 42,362,407.08 : x
  2. Step 2: Convert to fraction form
    91,511,120.52/137,289,915.02 = 42,362,407.08/x
  3. Step 3: Cross multiply
    91,511,120.52x = 137,289,915.02 × 42,362,407.08
  4. Step 4: Simplify right side
    91,511,120.52x = 5,815,931,268,055,847
  5. Step 5: Solve for x
    x = 5,815,931,268,055,847/91,511,120.52
  6. Step 6: Final answer
    x = 63,554,366.23

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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.