Home / 98,127,695.80-147,032,111.40-81,865,601.20

Finding the Fourth Proportional to 98,127,695.80, 147,032,111.40 and 81,865,601.20

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Solution

The fourth proportional to 98,127,695.80, 147,032,111.40 and 81,865,601.20 is: 122,665,391.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,127,695.80 : 147,032,111.40 = 81,865,601.20 : x
  2. Step 2: Convert to fraction form
    98,127,695.80/147,032,111.40 = 81,865,601.20/x
  3. Step 3: Cross multiply
    98,127,695.80x = 147,032,111.40 × 81,865,601.20
  4. Step 4: Simplify right side
    98,127,695.80x = 12,036,872,195,466,374
  5. Step 5: Solve for x
    x = 12,036,872,195,466,374/98,127,695.80
  6. Step 6: Final answer
    x = 122,665,391.23

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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.