Home / 90,720,274.70-136,080,412.05-30,136,000.70

Finding the Fourth Proportional to 90,720,274.70, 136,080,412.05 and 30,136,000.70

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Solution

The fourth proportional to 90,720,274.70, 136,080,412.05 and 30,136,000.70 is: 45,204,001.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,720,274.70 : 136,080,412.05 = 30,136,000.70 : x
  2. Step 2: Convert to fraction form
    90,720,274.70/136,080,412.05 = 30,136,000.70/x
  3. Step 3: Cross multiply
    90,720,274.70x = 136,080,412.05 × 30,136,000.70
  4. Step 4: Simplify right side
    90,720,274.70x = 4,100,919,392,795,088.50
  5. Step 5: Solve for x
    x = 4,100,919,392,795,088.50/90,720,274.70
  6. Step 6: Final answer
    x = 45,204,001.05

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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.