Home / 126,818,143.72-175,009,063.62-77,258,515.60

Finding the Fourth Proportional to 126,818,143.72, 175,009,063.62 and 77,258,515.60

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Solution

The fourth proportional to 126,818,143.72, 175,009,063.62 and 77,258,515.60 is: 106,616,766.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,818,143.72 : 175,009,063.62 = 77,258,515.60 : x
  2. Step 2: Convert to fraction form
    126,818,143.72/175,009,063.62 = 77,258,515.60/x
  3. Step 3: Cross multiply
    126,818,143.72x = 175,009,063.62 × 77,258,515.60
  4. Step 4: Simplify right side
    126,818,143.72x = 13,520,940,471,827,162
  5. Step 5: Solve for x
    x = 13,520,940,471,827,162/126,818,143.72
  6. Step 6: Final answer
    x = 106,616,766.93

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.