Home / 137,299,117.31-189,363,150.85-90,304,435.52

Finding the Fourth Proportional to 137,299,117.31, 189,363,150.85 and 90,304,435.52

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Solution

The fourth proportional to 137,299,117.31, 189,363,150.85 and 90,304,435.52 is: 124,548,014.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,299,117.31 : 189,363,150.85 = 90,304,435.52 : x
  2. Step 2: Convert to fraction form
    137,299,117.31/189,363,150.85 = 90,304,435.52/x
  3. Step 3: Cross multiply
    137,299,117.31x = 189,363,150.85 × 90,304,435.52
  4. Step 4: Simplify right side
    137,299,117.31x = 17,100,332,446,824,088
  5. Step 5: Solve for x
    x = 17,100,332,446,824,088/137,299,117.31
  6. Step 6: Final answer
    x = 124,548,014.45

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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.