Home / 213,653,426.70-320,480,140.05-149,030,201.10

Finding the Fourth Proportional to 213,653,426.70, 320,480,140.05 and 149,030,201.10

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Solution

The fourth proportional to 213,653,426.70, 320,480,140.05 and 149,030,201.10 is: 223,545,301.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,653,426.70 : 320,480,140.05 = 149,030,201.10 : x
  2. Step 2: Convert to fraction form
    213,653,426.70/320,480,140.05 = 149,030,201.10/x
  3. Step 3: Cross multiply
    213,653,426.70x = 320,480,140.05 × 149,030,201.10
  4. Step 4: Simplify right side
    213,653,426.70x = 47,761,219,720,207,664
  5. Step 5: Solve for x
    x = 47,761,219,720,207,664/213,653,426.70
  6. Step 6: Final answer
    x = 223,545,301.65

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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.