Home / 431,727,890.14-647,637,200.88-140,617,680.94

Finding the Fourth Proportional to 431,727,890.14, 647,637,200.88 and 140,617,680.94

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Solution

The fourth proportional to 431,727,890.14, 647,637,200.88 and 140,617,680.94 is: 210,941,297.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,727,890.14 : 647,637,200.88 = 140,617,680.94 : x
  2. Step 2: Convert to fraction form
    431,727,890.14/647,637,200.88 = 140,617,680.94/x
  3. Step 3: Cross multiply
    431,727,890.14x = 647,637,200.88 × 140,617,680.94
  4. Step 4: Simplify right side
    431,727,890.14x = 91,069,241,278,218,528
  5. Step 5: Solve for x
    x = 91,069,241,278,218,528/431,727,890.14
  6. Step 6: Final answer
    x = 210,941,297.42

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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.