Home / 11,129,991.70-16,694,987.55-8,260,210.30

Finding the Fourth Proportional to 11,129,991.70, 16,694,987.55 and 8,260,210.30

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Solution

The fourth proportional to 11,129,991.70, 16,694,987.55 and 8,260,210.30 is: 12,390,315.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,129,991.70 : 16,694,987.55 = 8,260,210.30 : x
  2. Step 2: Convert to fraction form
    11,129,991.70/16,694,987.55 = 8,260,210.30/x
  3. Step 3: Cross multiply
    11,129,991.70x = 16,694,987.55 × 8,260,210.30
  4. Step 4: Simplify right side
    11,129,991.70x = 137,904,108,118,881.77
  5. Step 5: Solve for x
    x = 137,904,108,118,881.77/11,129,991.70
  6. Step 6: Final answer
    x = 12,390,315.45

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Double scale
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Similar ratio
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1.5x scale

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.