Home / 122,157,778.98-168,576,547.27-90,935,452.56

Finding the Fourth Proportional to 122,157,778.98, 168,576,547.27 and 90,935,452.56

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Solution

The fourth proportional to 122,157,778.98, 168,576,547.27 and 90,935,452.56 is: 125,490,040.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,157,778.98 : 168,576,547.27 = 90,935,452.56 : x
  2. Step 2: Convert to fraction form
    122,157,778.98/168,576,547.27 = 90,935,452.56/x
  3. Step 3: Cross multiply
    122,157,778.98x = 168,576,547.27 × 90,935,452.56
  4. Step 4: Simplify right side
    122,157,778.98x = 15,329,584,616,369,876
  5. Step 5: Solve for x
    x = 15,329,584,616,369,876/122,157,778.98
  6. Step 6: Final answer
    x = 125,490,040.38

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1.5x scale

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.