Home / 137,054,020.80-205,581,031.20-128,550,964.80

Finding the Fourth Proportional to 137,054,020.80, 205,581,031.20 and 128,550,964.80

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Solution

The fourth proportional to 137,054,020.80, 205,581,031.20 and 128,550,964.80 is: 192,826,447.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,054,020.80 : 205,581,031.20 = 128,550,964.80 : x
  2. Step 2: Convert to fraction form
    137,054,020.80/205,581,031.20 = 128,550,964.80/x
  3. Step 3: Cross multiply
    137,054,020.80x = 205,581,031.20 × 128,550,964.80
  4. Step 4: Simplify right side
    137,054,020.80x = 26,427,639,905,338,900
  5. Step 5: Solve for x
    x = 26,427,639,905,338,900/137,054,020.80
  6. Step 6: Final answer
    x = 192,826,447.20

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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.