Home / 103,061,330.10-154,591,995.15-86,918,809.73

Finding the Fourth Proportional to 103,061,330.10, 154,591,995.15 and 86,918,809.73

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Solution

The fourth proportional to 103,061,330.10, 154,591,995.15 and 86,918,809.73 is: 130,378,214.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,061,330.10 : 154,591,995.15 = 86,918,809.73 : x
  2. Step 2: Convert to fraction form
    103,061,330.10/154,591,995.15 = 86,918,809.73/x
  3. Step 3: Cross multiply
    103,061,330.10x = 154,591,995.15 × 86,918,809.73
  4. Step 4: Simplify right side
    103,061,330.10x = 13,436,952,211,450,972
  5. Step 5: Solve for x
    x = 13,436,952,211,450,972/103,061,330.10
  6. Step 6: Final answer
    x = 130,378,214.59

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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.