Home / 85,213,000.20-127,819,500.30-52,901,387.40

Finding the Fourth Proportional to 85,213,000.20, 127,819,500.30 and 52,901,387.40

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Solution

The fourth proportional to 85,213,000.20, 127,819,500.30 and 52,901,387.40 is: 79,352,081.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,213,000.20 : 127,819,500.30 = 52,901,387.40 : x
  2. Step 2: Convert to fraction form
    85,213,000.20/127,819,500.30 = 52,901,387.40/x
  3. Step 3: Cross multiply
    85,213,000.20x = 127,819,500.30 × 52,901,387.40
  4. Step 4: Simplify right side
    85,213,000.20x = 6,761,828,902,644,716
  5. Step 5: Solve for x
    x = 6,761,828,902,644,716/85,213,000.20
  6. Step 6: Final answer
    x = 79,352,081.10

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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.