Home / 90,990,011.20-136,485,016.80-26,295,926.80

Finding the Fourth Proportional to 90,990,011.20, 136,485,016.80 and 26,295,926.80

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Solution

The fourth proportional to 90,990,011.20, 136,485,016.80 and 26,295,926.80 is: 39,443,890.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,990,011.20 : 136,485,016.80 = 26,295,926.80 : x
  2. Step 2: Convert to fraction form
    90,990,011.20/136,485,016.80 = 26,295,926.80/x
  3. Step 3: Cross multiply
    90,990,011.20x = 136,485,016.80 × 26,295,926.80
  4. Step 4: Simplify right side
    90,990,011.20x = 3,589,000,011,069,570.50
  5. Step 5: Solve for x
    x = 3,589,000,011,069,570.50/90,990,011.20
  6. Step 6: Final answer
    x = 39,443,890.20

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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.