Home / 126,138,684.80-189,208,027.20-124,012,920.80

Finding the Fourth Proportional to 126,138,684.80, 189,208,027.20 and 124,012,920.80

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Solution

The fourth proportional to 126,138,684.80, 189,208,027.20 and 124,012,920.80 is: 186,019,381.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,138,684.80 : 189,208,027.20 = 124,012,920.80 : x
  2. Step 2: Convert to fraction form
    126,138,684.80/189,208,027.20 = 124,012,920.80/x
  3. Step 3: Cross multiply
    126,138,684.80x = 189,208,027.20 × 124,012,920.80
  4. Step 4: Simplify right side
    126,138,684.80x = 23,464,240,091,877,844
  5. Step 5: Solve for x
    x = 23,464,240,091,877,844/126,138,684.80
  6. Step 6: Final answer
    x = 186,019,381.20

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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.