Home / 678,445,218.20-1,017,667,827.30-445,992,924.80

Finding the Fourth Proportional to 678,445,218.20, 1,017,667,827.30 and 445,992,924.80

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Solution

The fourth proportional to 678,445,218.20, 1,017,667,827.30 and 445,992,924.80 is: 668,989,387.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,445,218.20 : 1,017,667,827.30 = 445,992,924.80 : x
  2. Step 2: Convert to fraction form
    678,445,218.20/1,017,667,827.30 = 445,992,924.80/x
  3. Step 3: Cross multiply
    678,445,218.20x = 1,017,667,827.30 × 445,992,924.80
  4. Step 4: Simplify right side
    678,445,218.20x = 453,872,650,772,388,288
  5. Step 5: Solve for x
    x = 453,872,650,772,388,288/678,445,218.20
  6. Step 6: Final answer
    x = 668,989,387.20

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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.