Home / 20,412,005.10-30,618,007.65-12,349,848.30

Finding the Fourth Proportional to 20,412,005.10, 30,618,007.65 and 12,349,848.30

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Solution

The fourth proportional to 20,412,005.10, 30,618,007.65 and 12,349,848.30 is: 18,524,772.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,412,005.10 : 30,618,007.65 = 12,349,848.30 : x
  2. Step 2: Convert to fraction form
    20,412,005.10/30,618,007.65 = 12,349,848.30/x
  3. Step 3: Cross multiply
    20,412,005.10x = 30,618,007.65 × 12,349,848.30
  4. Step 4: Simplify right side
    20,412,005.10x = 378,127,749,725,739.50
  5. Step 5: Solve for x
    x = 378,127,749,725,739.50/20,412,005.10
  6. Step 6: Final answer
    x = 18,524,772.45

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Similar ratio
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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.