Home / 12,618,607.70-18,927,911.55-8,587,529.30

Finding the Fourth Proportional to 12,618,607.70, 18,927,911.55 and 8,587,529.30

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Solution

The fourth proportional to 12,618,607.70, 18,927,911.55 and 8,587,529.30 is: 12,881,293.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,618,607.70 : 18,927,911.55 = 8,587,529.30 : x
  2. Step 2: Convert to fraction form
    12,618,607.70/18,927,911.55 = 8,587,529.30/x
  3. Step 3: Cross multiply
    12,618,607.70x = 18,927,911.55 × 8,587,529.30
  4. Step 4: Simplify right side
    12,618,607.70x = 162,543,995,023,433.44
  5. Step 5: Solve for x
    x = 162,543,995,023,433.44/12,618,607.70
  6. Step 6: Final answer
    x = 12,881,293.95

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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.