Home / 12,618,608.70-18,927,913.05-8,587,530.30

Finding the Fourth Proportional to 12,618,608.70, 18,927,913.05 and 8,587,530.30

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Solution

The fourth proportional to 12,618,608.70, 18,927,913.05 and 8,587,530.30 is: 12,881,295.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,618,608.70 : 18,927,913.05 = 8,587,530.30 : x
  2. Step 2: Convert to fraction form
    12,618,608.70/18,927,913.05 = 8,587,530.30/x
  3. Step 3: Cross multiply
    12,618,608.70x = 18,927,913.05 × 8,587,530.30
  4. Step 4: Simplify right side
    12,618,608.70x = 162,544,026,832,640.44
  5. Step 5: Solve for x
    x = 162,544,026,832,640.44/12,618,608.70
  6. Step 6: Final answer
    x = 12,881,295.45

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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.