Home / 28,977,963.60-43,466,945.40-20,947,299.60

Finding the Fourth Proportional to 28,977,963.60, 43,466,945.40 and 20,947,299.60

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Solution

The fourth proportional to 28,977,963.60, 43,466,945.40 and 20,947,299.60 is: 31,420,949.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,977,963.60 : 43,466,945.40 = 20,947,299.60 : x
  2. Step 2: Convert to fraction form
    28,977,963.60/43,466,945.40 = 20,947,299.60/x
  3. Step 3: Cross multiply
    28,977,963.60x = 43,466,945.40 × 20,947,299.60
  4. Step 4: Simplify right side
    28,977,963.60x = 910,515,127,990,641.88
  5. Step 5: Solve for x
    x = 910,515,127,990,641.88/28,977,963.60
  6. Step 6: Final answer
    x = 31,420,949.40

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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.