Home / 10,531,748.70-15,774,003.45-8,642,180.70

Finding the Fourth Proportional to 10,531,748.70, 15,774,003.45 and 8,642,180.70

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Solution

The fourth proportional to 10,531,748.70, 15,774,003.45 and 8,642,180.70 is: 12,943,889.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,531,748.70 : 15,774,003.45 = 8,642,180.70 : x
  2. Step 2: Convert to fraction form
    10,531,748.70/15,774,003.45 = 8,642,180.70/x
  3. Step 3: Cross multiply
    10,531,748.70x = 15,774,003.45 × 8,642,180.70
  4. Step 4: Simplify right side
    10,531,748.70x = 136,321,788,177,323.39
  5. Step 5: Solve for x
    x = 136,321,788,177,323.39/10,531,748.70
  6. Step 6: Final answer
    x = 12,943,889.19

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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.