Home / 90,695,999.80-136,043,999.70-83,610,119.80

Finding the Fourth Proportional to 90,695,999.80, 136,043,999.70 and 83,610,119.80

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Solution

The fourth proportional to 90,695,999.80, 136,043,999.70 and 83,610,119.80 is: 125,415,179.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,695,999.80 : 136,043,999.70 = 83,610,119.80 : x
  2. Step 2: Convert to fraction form
    90,695,999.80/136,043,999.70 = 83,610,119.80/x
  3. Step 3: Cross multiply
    90,695,999.80x = 136,043,999.70 × 83,610,119.80
  4. Step 4: Simplify right side
    90,695,999.80x = 11,374,655,112,988,162
  5. Step 5: Solve for x
    x = 11,374,655,112,988,162/90,695,999.80
  6. Step 6: Final answer
    x = 125,415,179.70

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1.5x scale

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.