Home / 137,412,411.12-189,628,009.56-75,532,091.76

Finding the Fourth Proportional to 137,412,411.12, 189,628,009.56 and 75,532,091.76

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Solution

The fourth proportional to 137,412,411.12, 189,628,009.56 and 75,532,091.76 is: 104,233,672.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,412,411.12 : 189,628,009.56 = 75,532,091.76 : x
  2. Step 2: Convert to fraction form
    137,412,411.12/189,628,009.56 = 75,532,091.76/x
  3. Step 3: Cross multiply
    137,412,411.12x = 189,628,009.56 × 75,532,091.76
  4. Step 4: Simplify right side
    137,412,411.12x = 14,323,000,218,352,078
  5. Step 5: Solve for x
    x = 14,323,000,218,352,078/137,412,411.12
  6. Step 6: Final answer
    x = 104,233,672.21

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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.