Home / 943,490,961.70-1,415,236,442.55-667,991,947.30

Finding the Fourth Proportional to 943,490,961.70, 1,415,236,442.55 and 667,991,947.30

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Solution

The fourth proportional to 943,490,961.70, 1,415,236,442.55 and 667,991,947.30 is: 1,001,987,920.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    943,490,961.70 : 1,415,236,442.55 = 667,991,947.30 : x
  2. Step 2: Convert to fraction form
    943,490,961.70/1,415,236,442.55 = 667,991,947.30/x
  3. Step 3: Cross multiply
    943,490,961.70x = 1,415,236,442.55 × 667,991,947.30
  4. Step 4: Simplify right side
    943,490,961.70x = 945,366,547,148,898,944
  5. Step 5: Solve for x
    x = 945,366,547,148,898,944/943,490,961.70
  6. Step 6: Final answer
    x = 1,001,987,920.95

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Double scale
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1.5x scale

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.