Home / 19,215,350.30-28,823,025.45-18,386,039.90

Finding the Fourth Proportional to 19,215,350.30, 28,823,025.45 and 18,386,039.90

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Solution

The fourth proportional to 19,215,350.30, 28,823,025.45 and 18,386,039.90 is: 27,579,059.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,215,350.30 : 28,823,025.45 = 18,386,039.90 : x
  2. Step 2: Convert to fraction form
    19,215,350.30/28,823,025.45 = 18,386,039.90/x
  3. Step 3: Cross multiply
    19,215,350.30x = 28,823,025.45 × 18,386,039.90
  4. Step 4: Simplify right side
    19,215,350.30x = 529,941,295,962,415.38
  5. Step 5: Solve for x
    x = 529,941,295,962,415.38/19,215,350.30
  6. Step 6: Final answer
    x = 27,579,059.85

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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.