Home / 315,102,842.70-472,335,399.45-185,643,815.10

Finding the Fourth Proportional to 315,102,842.70, 472,335,399.45 and 185,643,815.10

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Solution

The fourth proportional to 315,102,842.70, 472,335,399.45 and 185,643,815.10 is: 278,277,862.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,102,842.70 : 472,335,399.45 = 185,643,815.10 : x
  2. Step 2: Convert to fraction form
    315,102,842.70/472,335,399.45 = 185,643,815.10/x
  3. Step 3: Cross multiply
    315,102,842.70x = 472,335,399.45 × 185,643,815.10
  4. Step 4: Simplify right side
    315,102,842.70x = 87,686,145,560,680,432
  5. Step 5: Solve for x
    x = 87,686,145,560,680,432/315,102,842.70
  6. Step 6: Final answer
    x = 278,277,862.58

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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.