Home / 28,009,028.80-42,013,543.20-16,643,627.20

Finding the Fourth Proportional to 28,009,028.80, 42,013,543.20 and 16,643,627.20

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Solution

The fourth proportional to 28,009,028.80, 42,013,543.20 and 16,643,627.20 is: 24,965,440.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,009,028.80 : 42,013,543.20 = 16,643,627.20 : x
  2. Step 2: Convert to fraction form
    28,009,028.80/42,013,543.20 = 16,643,627.20/x
  3. Step 3: Cross multiply
    28,009,028.80x = 42,013,543.20 × 16,643,627.20
  4. Step 4: Simplify right side
    28,009,028.80x = 699,257,750,371,895
  5. Step 5: Solve for x
    x = 699,257,750,371,895/28,009,028.80
  6. Step 6: Final answer
    x = 24,965,440.80

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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.