Home / 31,781,200.86-47,659,701.11-18,831,005.91

Finding the Fourth Proportional to 31,781,200.86, 47,659,701.11 and 18,831,005.91

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Solution

The fourth proportional to 31,781,200.86, 47,659,701.11 and 18,831,005.91 is: 28,239,339.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,781,200.86 : 47,659,701.11 = 18,831,005.91 : x
  2. Step 2: Convert to fraction form
    31,781,200.86/47,659,701.11 = 18,831,005.91/x
  3. Step 3: Cross multiply
    31,781,200.86x = 47,659,701.11 × 18,831,005.91
  4. Step 4: Simplify right side
    31,781,200.86x = 897,480,113,177,088.50
  5. Step 5: Solve for x
    x = 897,480,113,177,088.50/31,781,200.86
  6. Step 6: Final answer
    x = 28,239,339.26

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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.