Home / 20,160,312.70-30,240,469.05-11,090,386.30

Finding the Fourth Proportional to 20,160,312.70, 30,240,469.05 and 11,090,386.30

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Solution

The fourth proportional to 20,160,312.70, 30,240,469.05 and 11,090,386.30 is: 16,635,579.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,160,312.70 : 30,240,469.05 = 11,090,386.30 : x
  2. Step 2: Convert to fraction form
    20,160,312.70/30,240,469.05 = 11,090,386.30/x
  3. Step 3: Cross multiply
    20,160,312.70x = 30,240,469.05 × 11,090,386.30
  4. Step 4: Simplify right side
    20,160,312.70x = 335,378,483,657,694.06
  5. Step 5: Solve for x
    x = 335,378,483,657,694.06/20,160,312.70
  6. Step 6: Final answer
    x = 16,635,579.45

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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.