Home / 90,838,347.10-136,257,520.65-66,445,205.20

Finding the Fourth Proportional to 90,838,347.10, 136,257,520.65 and 66,445,205.20

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Solution

The fourth proportional to 90,838,347.10, 136,257,520.65 and 66,445,205.20 is: 99,667,807.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,838,347.10 : 136,257,520.65 = 66,445,205.20 : x
  2. Step 2: Convert to fraction form
    90,838,347.10/136,257,520.65 = 66,445,205.20/x
  3. Step 3: Cross multiply
    90,838,347.10x = 136,257,520.65 × 66,445,205.20
  4. Step 4: Simplify right side
    90,838,347.10x = 9,053,658,919,632,488
  5. Step 5: Solve for x
    x = 9,053,658,919,632,488/90,838,347.10
  6. Step 6: Final answer
    x = 99,667,807.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.