Home / 315,046,032.04-472,565,246.72-81,856,110.01

Finding the Fourth Proportional to 315,046,032.04, 472,565,246.72 and 81,856,110.01

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Solution

The fourth proportional to 315,046,032.04, 472,565,246.72 and 81,856,110.01 is: 122,783,177.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,046,032.04 : 472,565,246.72 = 81,856,110.01 : x
  2. Step 2: Convert to fraction form
    315,046,032.04/472,565,246.72 = 81,856,110.01/x
  3. Step 3: Cross multiply
    315,046,032.04x = 472,565,246.72 × 81,856,110.01
  4. Step 4: Simplify right side
    315,046,032.04x = 38,682,352,822,415,120
  5. Step 5: Solve for x
    x = 38,682,352,822,415,120/315,046,032.04
  6. Step 6: Final answer
    x = 122,783,177.34

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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.