Home / 77,327,310.30-115,988,341.05-19,820,145.30

Finding the Fourth Proportional to 77,327,310.30, 115,988,341.05 and 19,820,145.30

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Solution

The fourth proportional to 77,327,310.30, 115,988,341.05 and 19,820,145.30 is: 29,729,545.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,327,310.30 : 115,988,341.05 = 19,820,145.30 : x
  2. Step 2: Convert to fraction form
    77,327,310.30/115,988,341.05 = 19,820,145.30/x
  3. Step 3: Cross multiply
    77,327,310.30x = 115,988,341.05 × 19,820,145.30
  4. Step 4: Simplify right side
    77,327,310.30x = 2,298,905,772,716,954.50
  5. Step 5: Solve for x
    x = 2,298,905,772,716,954.50/77,327,310.30
  6. Step 6: Final answer
    x = 29,729,545.28

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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.