Home / 978,279,592.32-1,349,511,287.04-581,520,372.48

Finding the Fourth Proportional to 978,279,592.32, 1,349,511,287.04 and 581,520,372.48

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Solution

The fourth proportional to 978,279,592.32, 1,349,511,287.04 and 581,520,372.48 is: 802,192,248.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    978,279,592.32 : 1,349,511,287.04 = 581,520,372.48 : x
  2. Step 2: Convert to fraction form
    978,279,592.32/1,349,511,287.04 = 581,520,372.48/x
  3. Step 3: Cross multiply
    978,279,592.32x = 1,349,511,287.04 × 581,520,372.48
  4. Step 4: Simplify right side
    978,279,592.32x = 784,768,306,305,464,960
  5. Step 5: Solve for x
    x = 784,768,306,305,464,960/978,279,592.32
  6. Step 6: Final answer
    x = 802,192,248.99

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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.