Home / 310,817,679.72-428,917,153.41-171,585,451.86

Finding the Fourth Proportional to 310,817,679.72, 428,917,153.41 and 171,585,451.86

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Solution

The fourth proportional to 310,817,679.72, 428,917,153.41 and 171,585,451.86 is: 236,781,716.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,817,679.72 : 428,917,153.41 = 171,585,451.86 : x
  2. Step 2: Convert to fraction form
    310,817,679.72/428,917,153.41 = 171,585,451.86/x
  3. Step 3: Cross multiply
    310,817,679.72x = 428,917,153.41 × 171,585,451.86
  4. Step 4: Simplify right side
    310,817,679.72x = 73,595,943,578,359,808
  5. Step 5: Solve for x
    x = 73,595,943,578,359,808/310,817,679.72
  6. Step 6: Final answer
    x = 236,781,716.04

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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.