Home / 10,308,199.76-15,392,881.54-8,418,689.36

Finding the Fourth Proportional to 10,308,199.76, 15,392,881.54 and 8,418,689.36

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Solution

The fourth proportional to 10,308,199.76, 15,392,881.54 and 8,418,689.36 is: 12,571,340.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,308,199.76 : 15,392,881.54 = 8,418,689.36 : x
  2. Step 2: Convert to fraction form
    10,308,199.76/15,392,881.54 = 8,418,689.36/x
  3. Step 3: Cross multiply
    10,308,199.76x = 15,392,881.54 × 8,418,689.36
  4. Step 4: Simplify right side
    10,308,199.76x = 129,587,888,040,538.39
  5. Step 5: Solve for x
    x = 129,587,888,040,538.39/10,308,199.76
  6. Step 6: Final answer
    x = 12,571,340.39

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.