Home / 90,987,498.20-136,481,247.30-56,550,121.40

Finding the Fourth Proportional to 90,987,498.20, 136,481,247.30 and 56,550,121.40

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Solution

The fourth proportional to 90,987,498.20, 136,481,247.30 and 56,550,121.40 is: 84,825,182.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,987,498.20 : 136,481,247.30 = 56,550,121.40 : x
  2. Step 2: Convert to fraction form
    90,987,498.20/136,481,247.30 = 56,550,121.40/x
  3. Step 3: Cross multiply
    90,987,498.20x = 136,481,247.30 × 56,550,121.40
  4. Step 4: Simplify right side
    90,987,498.20x = 7,718,031,103,638,423
  5. Step 5: Solve for x
    x = 7,718,031,103,638,423/90,987,498.20
  6. Step 6: Final answer
    x = 84,825,182.10

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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.