Home / 1,009,418,713.20-1,514,269,787.40-319,254,001.20

Finding the Fourth Proportional to 1,009,418,713.20, 1,514,269,787.40 and 319,254,001.20

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Solution

The fourth proportional to 1,009,418,713.20, 1,514,269,787.40 and 319,254,001.20 is: 478,925,823.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,009,418,713.20 : 1,514,269,787.40 = 319,254,001.20 : x
  2. Step 2: Convert to fraction form
    1,009,418,713.20/1,514,269,787.40 = 319,254,001.20/x
  3. Step 3: Cross multiply
    1,009,418,713.20x = 1,514,269,787.40 × 319,254,001.20
  4. Step 4: Simplify right side
    1,009,418,713.20x = 483,436,688,523,723,328
  5. Step 5: Solve for x
    x = 483,436,688,523,723,328/1,009,418,713.20
  6. Step 6: Final answer
    x = 478,925,823.55

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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.