Home / 138,795,870.36-191,625,390.61-89,322,223.40

Finding the Fourth Proportional to 138,795,870.36, 191,625,390.61 and 89,322,223.40

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Solution

The fourth proportional to 138,795,870.36, 191,625,390.61 and 89,322,223.40 is: 123,320,714.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,795,870.36 : 191,625,390.61 = 89,322,223.40 : x
  2. Step 2: Convert to fraction form
    138,795,870.36/191,625,390.61 = 89,322,223.40/x
  3. Step 3: Cross multiply
    138,795,870.36x = 191,625,390.61 × 89,322,223.40
  4. Step 4: Simplify right side
    138,795,870.36x = 17,116,405,949,217,836
  5. Step 5: Solve for x
    x = 17,116,405,949,217,836/138,795,870.36
  6. Step 6: Final answer
    x = 123,320,714.83

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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.