Home / 86,945,595.20-130,434,139.20-43,705,980.80

Finding the Fourth Proportional to 86,945,595.20, 130,434,139.20 and 43,705,980.80

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Solution

The fourth proportional to 86,945,595.20, 130,434,139.20 and 43,705,980.80 is: 65,566,886.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,945,595.20 : 130,434,139.20 = 43,705,980.80 : x
  2. Step 2: Convert to fraction form
    86,945,595.20/130,434,139.20 = 43,705,980.80/x
  3. Step 3: Cross multiply
    86,945,595.20x = 130,434,139.20 × 43,705,980.80
  4. Step 4: Simplify right side
    86,945,595.20x = 5,700,751,983,539,727
  5. Step 5: Solve for x
    x = 5,700,751,983,539,727/86,945,595.20
  6. Step 6: Final answer
    x = 65,566,886.63

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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.