Home / 2,578,514,006.70-3,867,771,010.05-921,215,248.20

Finding the Fourth Proportional to 2,578,514,006.70, 3,867,771,010.05 and 921,215,248.20

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Solution

The fourth proportional to 2,578,514,006.70, 3,867,771,010.05 and 921,215,248.20 is: 1,381,822,872.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,578,514,006.70 : 3,867,771,010.05 = 921,215,248.20 : x
  2. Step 2: Convert to fraction form
    2,578,514,006.70/3,867,771,010.05 = 921,215,248.20/x
  3. Step 3: Cross multiply
    2,578,514,006.70x = 3,867,771,010.05 × 921,215,248.20
  4. Step 4: Simplify right side
    2,578,514,006.70x = 3,563,049,631,003,975,680
  5. Step 5: Solve for x
    x = 3,563,049,631,003,975,680/2,578,514,006.70
  6. Step 6: Final answer
    x = 1,381,822,872.30

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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.