Home / 28,072,593.99-42,112,907.82-8,643,463.90

Finding the Fourth Proportional to 28,072,593.99, 42,112,907.82 and 8,643,463.90

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Solution

The fourth proportional to 28,072,593.99, 42,112,907.82 and 8,643,463.90 is: 12,966,432.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,072,593.99 : 42,112,907.82 = 8,643,463.90 : x
  2. Step 2: Convert to fraction form
    28,072,593.99/42,112,907.82 = 8,643,463.90/x
  3. Step 3: Cross multiply
    28,072,593.99x = 42,112,907.82 × 8,643,463.90
  4. Step 4: Simplify right side
    28,072,593.99x = 364,001,398,466,197.69
  5. Step 5: Solve for x
    x = 364,001,398,466,197.69/28,072,593.99
  6. Step 6: Final answer
    x = 12,966,432.62

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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.