Home / 639,109,212.30-958,663,818.45-230,112,218.70

Finding the Fourth Proportional to 639,109,212.30, 958,663,818.45 and 230,112,218.70

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Solution

The fourth proportional to 639,109,212.30, 958,663,818.45 and 230,112,218.70 is: 345,168,328.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,109,212.30 : 958,663,818.45 = 230,112,218.70 : x
  2. Step 2: Convert to fraction form
    639,109,212.30/958,663,818.45 = 230,112,218.70/x
  3. Step 3: Cross multiply
    639,109,212.30x = 958,663,818.45 × 230,112,218.70
  4. Step 4: Simplify right side
    639,109,212.30x = 220,600,258,250,943,488
  5. Step 5: Solve for x
    x = 220,600,258,250,943,488/639,109,212.30
  6. Step 6: Final answer
    x = 345,168,328.05

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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.