Home / 90,720,266.40-136,068,152.40-36,172,987.20

Finding the Fourth Proportional to 90,720,266.40, 136,068,152.40 and 36,172,987.20

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Solution

The fourth proportional to 90,720,266.40, 136,068,152.40 and 36,172,987.20 is: 54,254,597.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,720,266.40 : 136,068,152.40 = 36,172,987.20 : x
  2. Step 2: Convert to fraction form
    90,720,266.40/136,068,152.40 = 36,172,987.20/x
  3. Step 3: Cross multiply
    90,720,266.40x = 136,068,152.40 × 36,172,987.20
  4. Step 4: Simplify right side
    90,720,266.40x = 4,921,991,535,092,850
  5. Step 5: Solve for x
    x = 4,921,991,535,092,850/90,720,266.40
  6. Step 6: Final answer
    x = 54,254,597.46

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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.