Home / 100,405,264.44-149,931,766.05-81,997,725.74

Finding the Fourth Proportional to 100,405,264.44, 149,931,766.05 and 81,997,725.74

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Solution

The fourth proportional to 100,405,264.44, 149,931,766.05 and 81,997,725.74 is: 122,444,414.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,405,264.44 : 149,931,766.05 = 81,997,725.74 : x
  2. Step 2: Convert to fraction form
    100,405,264.44/149,931,766.05 = 81,997,725.74/x
  3. Step 3: Cross multiply
    100,405,264.44x = 149,931,766.05 × 81,997,725.74
  4. Step 4: Simplify right side
    100,405,264.44x = 12,294,063,832,656,574
  5. Step 5: Solve for x
    x = 12,294,063,832,656,574/100,405,264.44
  6. Step 6: Final answer
    x = 122,444,414.66

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.