Home / 431,727,889.14-647,637,199.38-140,617,679.94

Finding the Fourth Proportional to 431,727,889.14, 647,637,199.38 and 140,617,679.94

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Solution

The fourth proportional to 431,727,889.14, 647,637,199.38 and 140,617,679.94 is: 210,941,295.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,727,889.14 : 647,637,199.38 = 140,617,679.94 : x
  2. Step 2: Convert to fraction form
    431,727,889.14/647,637,199.38 = 140,617,679.94/x
  3. Step 3: Cross multiply
    431,727,889.14x = 647,637,199.38 × 140,617,679.94
  4. Step 4: Simplify right side
    431,727,889.14x = 91,069,240,419,654,800
  5. Step 5: Solve for x
    x = 91,069,240,419,654,800/431,727,889.14
  6. Step 6: Final answer
    x = 210,941,295.92

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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.