Home / 209,425,176.48-288,997,418.80-120,053,047.96

Finding the Fourth Proportional to 209,425,176.48, 288,997,418.80 and 120,053,047.96

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Solution

The fourth proportional to 209,425,176.48, 288,997,418.80 and 120,053,047.96 is: 165,667,860.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,425,176.48 : 288,997,418.80 = 120,053,047.96 : x
  2. Step 2: Convert to fraction form
    209,425,176.48/288,997,418.80 = 120,053,047.96/x
  3. Step 3: Cross multiply
    209,425,176.48x = 288,997,418.80 × 120,053,047.96
  4. Step 4: Simplify right side
    209,425,176.48x = 34,695,020,979,512,604
  5. Step 5: Solve for x
    x = 34,695,020,979,512,604/209,425,176.48
  6. Step 6: Final answer
    x = 165,667,860.77

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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.