Home / 513,113,020.33-769,591,763.62-139,650,008.82

Finding the Fourth Proportional to 513,113,020.33, 769,591,763.62 and 139,650,008.82

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Solution

The fourth proportional to 513,113,020.33, 769,591,763.62 and 139,650,008.82 is: 209,453,848.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,113,020.33 : 769,591,763.62 = 139,650,008.82 : x
  2. Step 2: Convert to fraction form
    513,113,020.33/769,591,763.62 = 139,650,008.82/x
  3. Step 3: Cross multiply
    513,113,020.33x = 769,591,763.62 × 139,650,008.82
  4. Step 4: Simplify right side
    513,113,020.33x = 107,473,496,577,332,352
  5. Step 5: Solve for x
    x = 107,473,496,577,332,352/513,113,020.33
  6. Step 6: Final answer
    x = 209,453,848.02

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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.