Home / 487,614,560.20-672,716,530.02-278,658,601

Finding the Fourth Proportional to 487,614,560.20, 672,716,530.02 and 278,658,601

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Solution

The fourth proportional to 487,614,560.20, 672,716,530.02 and 278,658,601 is: 384,439,396.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,614,560.20 : 672,716,530.02 = 278,658,601 : x
  2. Step 2: Convert to fraction form
    487,614,560.20/672,716,530.02 = 278,658,601/x
  3. Step 3: Cross multiply
    487,614,560.20x = 672,716,530.02 × 278,658,601
  4. Step 4: Simplify right side
    487,614,560.20x = 187,458,247,124,947,712
  5. Step 5: Solve for x
    x = 187,458,247,124,947,712/487,614,560.20
  6. Step 6: Final answer
    x = 384,439,396.25

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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.