Home / 124,017,189.68-171,142,363.56-68,261,418

Finding the Fourth Proportional to 124,017,189.68, 171,142,363.56 and 68,261,418

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Solution

The fourth proportional to 124,017,189.68, 171,142,363.56 and 68,261,418 is: 94,200,009.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,017,189.68 : 171,142,363.56 = 68,261,418 : x
  2. Step 2: Convert to fraction form
    124,017,189.68/171,142,363.56 = 68,261,418/x
  3. Step 3: Cross multiply
    124,017,189.68x = 171,142,363.56 × 68,261,418
  4. Step 4: Simplify right side
    124,017,189.68x = 11,682,420,416,477,128
  5. Step 5: Solve for x
    x = 11,682,420,416,477,128/124,017,189.68
  6. Step 6: Final answer
    x = 94,200,009.26

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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.