Home / 31,758,856.80-47,638,285.20-19,665,621.60

Finding the Fourth Proportional to 31,758,856.80, 47,638,285.20 and 19,665,621.60

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Solution

The fourth proportional to 31,758,856.80, 47,638,285.20 and 19,665,621.60 is: 29,498,432.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,758,856.80 : 47,638,285.20 = 19,665,621.60 : x
  2. Step 2: Convert to fraction form
    31,758,856.80/47,638,285.20 = 19,665,621.60/x
  3. Step 3: Cross multiply
    31,758,856.80x = 47,638,285.20 × 19,665,621.60
  4. Step 4: Simplify right side
    31,758,856.80x = 936,836,490,416,080.50
  5. Step 5: Solve for x
    x = 936,836,490,416,080.50/31,758,856.80
  6. Step 6: Final answer
    x = 29,498,432.40

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1.5x scale

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.