Home / 28,977,640.80-43,466,461.20-8,780,258.40

Finding the Fourth Proportional to 28,977,640.80, 43,466,461.20 and 8,780,258.40

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Solution

The fourth proportional to 28,977,640.80, 43,466,461.20 and 8,780,258.40 is: 13,170,387.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,977,640.80 : 43,466,461.20 = 8,780,258.40 : x
  2. Step 2: Convert to fraction form
    28,977,640.80/43,466,461.20 = 8,780,258.40/x
  3. Step 3: Cross multiply
    28,977,640.80x = 43,466,461.20 × 8,780,258.40
  4. Step 4: Simplify right side
    28,977,640.80x = 381,646,761,069,574.12
  5. Step 5: Solve for x
    x = 381,646,761,069,574.12/28,977,640.80
  6. Step 6: Final answer
    x = 13,170,387.60

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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.