Home / 10,531,608.20-15,773,792.70-8,642,040.20

Finding the Fourth Proportional to 10,531,608.20, 15,773,792.70 and 8,642,040.20

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Solution

The fourth proportional to 10,531,608.20, 15,773,792.70 and 8,642,040.20 is: 12,943,678.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,531,608.20 : 15,773,792.70 = 8,642,040.20 : x
  2. Step 2: Convert to fraction form
    10,531,608.20/15,773,792.70 = 8,642,040.20/x
  3. Step 3: Cross multiply
    10,531,608.20x = 15,773,792.70 × 8,642,040.20
  4. Step 4: Simplify right side
    10,531,608.20x = 136,317,750,619,866.52
  5. Step 5: Solve for x
    x = 136,317,750,619,866.52/10,531,608.20
  6. Step 6: Final answer
    x = 12,943,678.50

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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.