Home / 21,031,148.60-31,546,722.90-7,563,116.60

Finding the Fourth Proportional to 21,031,148.60, 31,546,722.90 and 7,563,116.60

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Solution

The fourth proportional to 21,031,148.60, 31,546,722.90 and 7,563,116.60 is: 11,344,674.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,031,148.60 : 31,546,722.90 = 7,563,116.60 : x
  2. Step 2: Convert to fraction form
    21,031,148.60/31,546,722.90 = 7,563,116.60/x
  3. Step 3: Cross multiply
    21,031,148.60x = 31,546,722.90 × 7,563,116.60
  4. Step 4: Simplify right side
    21,031,148.60x = 238,591,543,640,590.12
  5. Step 5: Solve for x
    x = 238,591,543,640,590.12/21,031,148.60
  6. Step 6: Final answer
    x = 11,344,674.90

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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.