Home / 131,725,993.32-181,781,692.50-72,992,461.98

Finding the Fourth Proportional to 131,725,993.32, 181,781,692.50 and 72,992,461.98

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Solution

The fourth proportional to 131,725,993.32, 181,781,692.50 and 72,992,461.98 is: 100,729,498.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,725,993.32 : 181,781,692.50 = 72,992,461.98 : x
  2. Step 2: Convert to fraction form
    131,725,993.32/181,781,692.50 = 72,992,461.98/x
  3. Step 3: Cross multiply
    131,725,993.32x = 181,781,692.50 × 72,992,461.98
  4. Step 4: Simplify right side
    131,725,993.32x = 13,268,693,278,466,302
  5. Step 5: Solve for x
    x = 13,268,693,278,466,302/131,725,993.32
  6. Step 6: Final answer
    x = 100,729,498.74

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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.