Home / 158,113,721.74-218,165,928.25-99,342,335.10

Finding the Fourth Proportional to 158,113,721.74, 218,165,928.25 and 99,342,335.10

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Solution

The fourth proportional to 158,113,721.74, 218,165,928.25 and 99,342,335.10 is: 137,072,940.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,113,721.74 : 218,165,928.25 = 99,342,335.10 : x
  2. Step 2: Convert to fraction form
    158,113,721.74/218,165,928.25 = 99,342,335.10/x
  3. Step 3: Cross multiply
    158,113,721.74x = 218,165,928.25 × 99,342,335.10
  4. Step 4: Simplify right side
    158,113,721.74x = 21,673,112,751,614,056
  5. Step 5: Solve for x
    x = 21,673,112,751,614,056/158,113,721.74
  6. Step 6: Final answer
    x = 137,072,940.37

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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.