Home / 679,287,944.64-1,018,926,317.76-194,614,219.20

Finding the Fourth Proportional to 679,287,944.64, 1,018,926,317.76 and 194,614,219.20

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Solution

The fourth proportional to 679,287,944.64, 1,018,926,317.76 and 194,614,219.20 is: 291,919,724.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,287,944.64 : 1,018,926,317.76 = 194,614,219.20 : x
  2. Step 2: Convert to fraction form
    679,287,944.64/1,018,926,317.76 = 194,614,219.20/x
  3. Step 3: Cross multiply
    679,287,944.64x = 1,018,926,317.76 × 194,614,219.20
  4. Step 4: Simplify right side
    679,287,944.64x = 198,297,549,753,193,472
  5. Step 5: Solve for x
    x = 198,297,549,753,193,472/679,287,944.64
  6. Step 6: Final answer
    x = 291,919,724.64

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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.