Home / 12,618,612.70-18,927,919.05-8,587,534.30

Finding the Fourth Proportional to 12,618,612.70, 18,927,919.05 and 8,587,534.30

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Solution

The fourth proportional to 12,618,612.70, 18,927,919.05 and 8,587,534.30 is: 12,881,301.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,618,612.70 : 18,927,919.05 = 8,587,534.30 : x
  2. Step 2: Convert to fraction form
    12,618,612.70/18,927,919.05 = 8,587,534.30/x
  3. Step 3: Cross multiply
    12,618,612.70x = 18,927,919.05 × 8,587,534.30
  4. Step 4: Simplify right side
    12,618,612.70x = 162,544,154,069,498.44
  5. Step 5: Solve for x
    x = 162,544,154,069,498.44/12,618,612.70
  6. Step 6: Final answer
    x = 12,881,301.45

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Double scale
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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.