Home / 315,046,031.04-472,565,245.22-81,856,109.01

Finding the Fourth Proportional to 315,046,031.04, 472,565,245.22 and 81,856,109.01

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Solution

The fourth proportional to 315,046,031.04, 472,565,245.22 and 81,856,109.01 is: 122,783,175.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,046,031.04 : 472,565,245.22 = 81,856,109.01 : x
  2. Step 2: Convert to fraction form
    315,046,031.04/472,565,245.22 = 81,856,109.01/x
  3. Step 3: Cross multiply
    315,046,031.04x = 472,565,245.22 × 81,856,109.01
  4. Step 4: Simplify right side
    315,046,031.04x = 38,682,352,228,736,320
  5. Step 5: Solve for x
    x = 38,682,352,228,736,320/315,046,031.04
  6. Step 6: Final answer
    x = 122,783,175.85

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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.