Home / 198,209,751.80-297,312,734.37-120,508,108.41

Finding the Fourth Proportional to 198,209,751.80, 297,312,734.37 and 120,508,108.41

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Solution

The fourth proportional to 198,209,751.80, 297,312,734.37 and 120,508,108.41 is: 180,761,011.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,209,751.80 : 297,312,734.37 = 120,508,108.41 : x
  2. Step 2: Convert to fraction form
    198,209,751.80/297,312,734.37 = 120,508,108.41/x
  3. Step 3: Cross multiply
    198,209,751.80x = 297,312,734.37 × 120,508,108.41
  4. Step 4: Simplify right side
    198,209,751.80x = 35,828,595,225,734,564
  5. Step 5: Solve for x
    x = 35,828,595,225,734,564/198,209,751.80
  6. Step 6: Final answer
    x = 180,761,011.51

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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.