Home / 90,955,129.40-136,432,694.10-45,500,521.40

Finding the Fourth Proportional to 90,955,129.40, 136,432,694.10 and 45,500,521.40

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Solution

The fourth proportional to 90,955,129.40, 136,432,694.10 and 45,500,521.40 is: 68,250,782.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,955,129.40 : 136,432,694.10 = 45,500,521.40 : x
  2. Step 2: Convert to fraction form
    90,955,129.40/136,432,694.10 = 45,500,521.40/x
  3. Step 3: Cross multiply
    90,955,129.40x = 136,432,694.10 × 45,500,521.40
  4. Step 4: Simplify right side
    90,955,129.40x = 6,207,758,717,556,703
  5. Step 5: Solve for x
    x = 6,207,758,717,556,703/90,955,129.40
  6. Step 6: Final answer
    x = 68,250,782.10

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Similar ratio
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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.