Home / 1,979,834,670.40-2,969,752,005.60-891,443,502.40

Finding the Fourth Proportional to 1,979,834,670.40, 2,969,752,005.60 and 891,443,502.40

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Solution

The fourth proportional to 1,979,834,670.40, 2,969,752,005.60 and 891,443,502.40 is: 1,337,165,253.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,979,834,670.40 : 2,969,752,005.60 = 891,443,502.40 : x
  2. Step 2: Convert to fraction form
    1,979,834,670.40/2,969,752,005.60 = 891,443,502.40/x
  3. Step 3: Cross multiply
    1,979,834,670.40x = 2,969,752,005.60 × 891,443,502.40
  4. Step 4: Simplify right side
    1,979,834,670.40x = 2,647,366,129,131,488,256
  5. Step 5: Solve for x
    x = 2,647,366,129,131,488,256/1,979,834,670.40
  6. Step 6: Final answer
    x = 1,337,165,253.60

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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.