Home / 213,995,251.20-320,780,300.40-98,778,842.40

Finding the Fourth Proportional to 213,995,251.20, 320,780,300.40 and 98,778,842.40

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Solution

The fourth proportional to 213,995,251.20, 320,780,300.40 and 98,778,842.40 is: 148,070,139.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,995,251.20 : 320,780,300.40 = 98,778,842.40 : x
  2. Step 2: Convert to fraction form
    213,995,251.20/320,780,300.40 = 98,778,842.40/x
  3. Step 3: Cross multiply
    213,995,251.20x = 320,780,300.40 × 98,778,842.40
  4. Step 4: Simplify right side
    213,995,251.20x = 31,686,306,738,236,256
  5. Step 5: Solve for x
    x = 31,686,306,738,236,256/213,995,251.20
  6. Step 6: Final answer
    x = 148,070,139.69

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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.