Home / 90,720,301.20-136,080,451.80-30,136,027.20

Finding the Fourth Proportional to 90,720,301.20, 136,080,451.80 and 30,136,027.20

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Solution

The fourth proportional to 90,720,301.20, 136,080,451.80 and 30,136,027.20 is: 45,204,040.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,720,301.20 : 136,080,451.80 = 30,136,027.20 : x
  2. Step 2: Convert to fraction form
    90,720,301.20/136,080,451.80 = 30,136,027.20/x
  3. Step 3: Cross multiply
    90,720,301.20x = 136,080,451.80 × 30,136,027.20
  4. Step 4: Simplify right side
    90,720,301.20x = 4,100,924,196,833,089
  5. Step 5: Solve for x
    x = 4,100,924,196,833,089/90,720,301.20
  6. Step 6: Final answer
    x = 45,204,040.80

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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.