Home / 84,243,208.40-126,364,812.60-45,979,456.40

Finding the Fourth Proportional to 84,243,208.40, 126,364,812.60 and 45,979,456.40

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Solution

The fourth proportional to 84,243,208.40, 126,364,812.60 and 45,979,456.40 is: 68,969,184.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,243,208.40 : 126,364,812.60 = 45,979,456.40 : x
  2. Step 2: Convert to fraction form
    84,243,208.40/126,364,812.60 = 45,979,456.40/x
  3. Step 3: Cross multiply
    84,243,208.40x = 126,364,812.60 × 45,979,456.40
  4. Step 4: Simplify right side
    84,243,208.40x = 5,810,185,391,435,870
  5. Step 5: Solve for x
    x = 5,810,185,391,435,870/84,243,208.40
  6. Step 6: Final answer
    x = 68,969,184.60

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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.