Home / 108,658,889.70-162,988,334.55-74,221,512.90

Finding the Fourth Proportional to 108,658,889.70, 162,988,334.55 and 74,221,512.90

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Solution

The fourth proportional to 108,658,889.70, 162,988,334.55 and 74,221,512.90 is: 111,332,269.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,658,889.70 : 162,988,334.55 = 74,221,512.90 : x
  2. Step 2: Convert to fraction form
    108,658,889.70/162,988,334.55 = 74,221,512.90/x
  3. Step 3: Cross multiply
    108,658,889.70x = 162,988,334.55 × 74,221,512.90
  4. Step 4: Simplify right side
    108,658,889.70x = 12,097,240,775,352,342
  5. Step 5: Solve for x
    x = 12,097,240,775,352,342/108,658,889.70
  6. Step 6: Final answer
    x = 111,332,269.35

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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.