Home / 1,289,414,377.38-1,779,381,144.33-724,901,775.30

Finding the Fourth Proportional to 1,289,414,377.38, 1,779,381,144.33 and 724,901,775.30

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Solution

The fourth proportional to 1,289,414,377.38, 1,779,381,144.33 and 724,901,775.30 is: 1,000,358,436.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,289,414,377.38 : 1,779,381,144.33 = 724,901,775.30 : x
  2. Step 2: Convert to fraction form
    1,289,414,377.38/1,779,381,144.33 = 724,901,775.30/x
  3. Step 3: Cross multiply
    1,289,414,377.38x = 1,779,381,144.33 × 724,901,775.30
  4. Step 4: Simplify right side
    1,289,414,377.38x = 1,289,876,550,460,162,304
  5. Step 5: Solve for x
    x = 1,289,876,550,460,162,304/1,289,414,377.38
  6. Step 6: Final answer
    x = 1,000,358,436.43

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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.