Home / 126,819,832.92-189,906,814.80-83,557,878.18

Finding the Fourth Proportional to 126,819,832.92, 189,906,814.80 and 83,557,878.18

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Solution

The fourth proportional to 126,819,832.92, 189,906,814.80 and 83,557,878.18 is: 125,124,045.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,819,832.92 : 189,906,814.80 = 83,557,878.18 : x
  2. Step 2: Convert to fraction form
    126,819,832.92/189,906,814.80 = 83,557,878.18/x
  3. Step 3: Cross multiply
    126,819,832.92x = 189,906,814.80 × 83,557,878.18
  4. Step 4: Simplify right side
    126,819,832.92x = 15,868,210,496,610,224
  5. Step 5: Solve for x
    x = 15,868,210,496,610,224/126,819,832.92
  6. Step 6: Final answer
    x = 125,124,045.12

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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.