Home / 12,900,150.08-17,801,760.84-7,098,389.36

Finding the Fourth Proportional to 12,900,150.08, 17,801,760.84 and 7,098,389.36

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Solution

The fourth proportional to 12,900,150.08, 17,801,760.84 and 7,098,389.36 is: 9,795,531.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,900,150.08 : 17,801,760.84 = 7,098,389.36 : x
  2. Step 2: Convert to fraction form
    12,900,150.08/17,801,760.84 = 7,098,389.36/x
  3. Step 3: Cross multiply
    12,900,150.08x = 17,801,760.84 × 7,098,389.36
  4. Step 4: Simplify right side
    12,900,150.08x = 126,363,829,735,920.67
  5. Step 5: Solve for x
    x = 126,363,829,735,920.67/12,900,150.08
  6. Step 6: Final answer
    x = 9,795,531.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.