Home / 86,945,109.20-130,433,410.20-43,705,494.80

Finding the Fourth Proportional to 86,945,109.20, 130,433,410.20 and 43,705,494.80

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Solution

The fourth proportional to 86,945,109.20, 130,433,410.20 and 43,705,494.80 is: 65,566,157.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,945,109.20 : 130,433,410.20 = 43,705,494.80 : x
  2. Step 2: Convert to fraction form
    86,945,109.20/130,433,410.20 = 43,705,494.80/x
  3. Step 3: Cross multiply
    86,945,109.20x = 130,433,410.20 × 43,705,494.80
  4. Step 4: Simplify right side
    86,945,109.20x = 5,700,656,731,242,367
  5. Step 5: Solve for x
    x = 5,700,656,731,242,367/86,945,109.20
  6. Step 6: Final answer
    x = 65,566,157.59

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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.