Home / 100,405,264.92-149,931,766.76-81,997,726.23

Finding the Fourth Proportional to 100,405,264.92, 149,931,766.76 and 81,997,726.23

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Solution

The fourth proportional to 100,405,264.92, 149,931,766.76 and 81,997,726.23 is: 122,444,415.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,405,264.92 : 149,931,766.76 = 81,997,726.23 : x
  2. Step 2: Convert to fraction form
    100,405,264.92/149,931,766.76 = 81,997,726.23/x
  3. Step 3: Cross multiply
    100,405,264.92x = 149,931,766.76 × 81,997,726.23
  4. Step 4: Simplify right side
    100,405,264.92x = 12,294,063,963,556,706
  5. Step 5: Solve for x
    x = 12,294,063,963,556,706/100,405,264.92
  6. Step 6: Final answer
    x = 122,444,415.37

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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.