Home / 81,234,934.25-121,846,686.01-38,113,592.81

Finding the Fourth Proportional to 81,234,934.25, 121,846,686.01 and 38,113,592.81

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Solution

The fourth proportional to 81,234,934.25, 121,846,686.01 and 38,113,592.81 is: 57,167,707.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,234,934.25 : 121,846,686.01 = 38,113,592.81 : x
  2. Step 2: Convert to fraction form
    81,234,934.25/121,846,686.01 = 38,113,592.81/x
  3. Step 3: Cross multiply
    81,234,934.25x = 121,846,686.01 × 38,113,592.81
  4. Step 4: Simplify right side
    81,234,934.25x = 4,644,014,975,128,546
  5. Step 5: Solve for x
    x = 4,644,014,975,128,546/81,234,934.25
  6. Step 6: Final answer
    x = 57,167,707.69

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.