Home / 121,400,542.20-182,289,770.10-70,382,206.20

Finding the Fourth Proportional to 121,400,542.20, 182,289,770.10 and 70,382,206.20

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Solution

The fourth proportional to 121,400,542.20, 182,289,770.10 and 70,382,206.20 is: 105,682,857.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,400,542.20 : 182,289,770.10 = 70,382,206.20 : x
  2. Step 2: Convert to fraction form
    121,400,542.20/182,289,770.10 = 70,382,206.20/x
  3. Step 3: Cross multiply
    121,400,542.20x = 182,289,770.10 × 70,382,206.20
  4. Step 4: Simplify right side
    121,400,542.20x = 12,829,956,187,328,794
  5. Step 5: Solve for x
    x = 12,829,956,187,328,794/121,400,542.20
  6. Step 6: Final answer
    x = 105,682,857.38

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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.