Home / 85,245,359.50-127,900,251.24-51,190,445.26

Finding the Fourth Proportional to 85,245,359.50, 127,900,251.24 and 51,190,445.26

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Solution

The fourth proportional to 85,245,359.50, 127,900,251.24 and 51,190,445.26 is: 76,805,011.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,245,359.50 : 127,900,251.24 = 51,190,445.26 : x
  2. Step 2: Convert to fraction form
    85,245,359.50/127,900,251.24 = 51,190,445.26/x
  3. Step 3: Cross multiply
    85,245,359.50x = 127,900,251.24 × 51,190,445.26
  4. Step 4: Simplify right side
    85,245,359.50x = 6,547,270,809,841,467
  5. Step 5: Solve for x
    x = 6,547,270,809,841,467/85,245,359.50
  6. Step 6: Final answer
    x = 76,805,011.42

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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.