Home / 142,569,507.74-196,712,198.88-80,689,844.48

Finding the Fourth Proportional to 142,569,507.74, 196,712,198.88 and 80,689,844.48

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Solution

The fourth proportional to 142,569,507.74, 196,712,198.88 and 80,689,844.48 is: 111,332,899.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,569,507.74 : 196,712,198.88 = 80,689,844.48 : x
  2. Step 2: Convert to fraction form
    142,569,507.74/196,712,198.88 = 80,689,844.48/x
  3. Step 3: Cross multiply
    142,569,507.74x = 196,712,198.88 × 80,689,844.48
  4. Step 4: Simplify right side
    142,569,507.74x = 15,872,676,734,946,030
  5. Step 5: Solve for x
    x = 15,872,676,734,946,030/142,569,507.74
  6. Step 6: Final answer
    x = 111,332,899.91

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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.