Home / 13,920,818.28-19,213,038.12-8,119,599.88

Finding the Fourth Proportional to 13,920,818.28, 19,213,038.12 and 8,119,599.88

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Solution

The fourth proportional to 13,920,818.28, 19,213,038.12 and 8,119,599.88 is: 11,206,394.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,920,818.28 : 19,213,038.12 = 8,119,599.88 : x
  2. Step 2: Convert to fraction form
    13,920,818.28/19,213,038.12 = 8,119,599.88/x
  3. Step 3: Cross multiply
    13,920,818.28x = 19,213,038.12 × 8,119,599.88
  4. Step 4: Simplify right side
    13,920,818.28x = 156,002,182,013,587.44
  5. Step 5: Solve for x
    x = 156,002,182,013,587.44/13,920,818.28
  6. Step 6: Final answer
    x = 11,206,394.54

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.