Home / 487,454,150.20-672,686,727.29-278,614,776.93

Finding the Fourth Proportional to 487,454,150.20, 672,686,727.29 and 278,614,776.93

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Solution

The fourth proportional to 487,454,150.20, 672,686,727.29 and 278,614,776.93 is: 384,488,392.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,454,150.20 : 672,686,727.29 = 278,614,776.93 : x
  2. Step 2: Convert to fraction form
    487,454,150.20/672,686,727.29 = 278,614,776.93/x
  3. Step 3: Cross multiply
    487,454,150.20x = 672,686,727.29 × 278,614,776.93
  4. Step 4: Simplify right side
    487,454,150.20x = 187,420,462,467,675,072
  5. Step 5: Solve for x
    x = 187,420,462,467,675,072/487,454,150.20
  6. Step 6: Final answer
    x = 384,488,392.17

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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.