Home / 142,385,011.80-196,522,049.44-86,648,390.06

Finding the Fourth Proportional to 142,385,011.80, 196,522,049.44 and 86,648,390.06

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Solution

The fourth proportional to 142,385,011.80, 196,522,049.44 and 86,648,390.06 is: 119,593,480.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,385,011.80 : 196,522,049.44 = 86,648,390.06 : x
  2. Step 2: Convert to fraction form
    142,385,011.80/196,522,049.44 = 86,648,390.06/x
  3. Step 3: Cross multiply
    142,385,011.80x = 196,522,049.44 × 86,648,390.06
  4. Step 4: Simplify right side
    142,385,011.80x = 17,028,319,195,498,862
  5. Step 5: Solve for x
    x = 17,028,319,195,498,862/142,385,011.80
  6. Step 6: Final answer
    x = 119,593,480.94

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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.