Home / 309,986,525.76-464,979,789.33-128,233,703.76

Finding the Fourth Proportional to 309,986,525.76, 464,979,789.33 and 128,233,703.76

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Solution

The fourth proportional to 309,986,525.76, 464,979,789.33 and 128,233,703.76 is: 192,350,555.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,986,525.76 : 464,979,789.33 = 128,233,703.76 : x
  2. Step 2: Convert to fraction form
    309,986,525.76/464,979,789.33 = 128,233,703.76/x
  3. Step 3: Cross multiply
    309,986,525.76x = 464,979,789.33 × 128,233,703.76
  4. Step 4: Simplify right side
    309,986,525.76x = 59,626,080,559,330,432
  5. Step 5: Solve for x
    x = 59,626,080,559,330,432/309,986,525.76
  6. Step 6: Final answer
    x = 192,350,555.93

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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.