Home / 630,757,758,621.52-870,434,360,417.46-356,397,520,493.44

Finding the Fourth Proportional to 630,757,758,621.52, 870,434,360,417.46 and 356,397,520,493.44

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Solution

The fourth proportional to 630,757,758,621.52, 870,434,360,417.46 and 356,397,520,493.44 is: 491,822,167,170.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,757,758,621.52 : 870,434,360,417.46 = 356,397,520,493.44 : x
  2. Step 2: Convert to fraction form
    630,757,758,621.52/870,434,360,417.46 = 356,397,520,493.44/x
  3. Step 3: Cross multiply
    630,757,758,621.52x = 870,434,360,417.46 × 356,397,520,493.44
  4. Step 4: Simplify right side
    630,757,758,621.52x = 310,220,647,805,076,027,473,920
  5. Step 5: Solve for x
    x = 310,220,647,805,076,027,473,920/630,757,758,621.52
  6. Step 6: Final answer
    x = 491,822,167,170.87

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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.