Home / 28,072,591.99-42,112,904.82-8,643,461.90

Finding the Fourth Proportional to 28,072,591.99, 42,112,904.82 and 8,643,461.90

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Solution

The fourth proportional to 28,072,591.99, 42,112,904.82 and 8,643,461.90 is: 12,966,429.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,072,591.99 : 42,112,904.82 = 8,643,461.90 : x
  2. Step 2: Convert to fraction form
    28,072,591.99/42,112,904.82 = 8,643,461.90/x
  3. Step 3: Cross multiply
    28,072,591.99x = 42,112,904.82 × 8,643,461.90
  4. Step 4: Simplify right side
    28,072,591.99x = 364,001,288,309,996.38
  5. Step 5: Solve for x
    x = 364,001,288,309,996.38/28,072,591.99
  6. Step 6: Final answer
    x = 12,966,429.62

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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.