Home / 86,263,719.24-129,352,309.66-28,735,765.32

Finding the Fourth Proportional to 86,263,719.24, 129,352,309.66 and 28,735,765.32

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Solution

The fourth proportional to 86,263,719.24, 129,352,309.66 and 28,735,765.32 is: 43,089,234.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,263,719.24 : 129,352,309.66 = 28,735,765.32 : x
  2. Step 2: Convert to fraction form
    86,263,719.24/129,352,309.66 = 28,735,765.32/x
  3. Step 3: Cross multiply
    86,263,719.24x = 129,352,309.66 × 28,735,765.32
  4. Step 4: Simplify right side
    86,263,719.24x = 3,717,037,613,989,729
  5. Step 5: Solve for x
    x = 3,717,037,613,989,729/86,263,719.24
  6. Step 6: Final answer
    x = 43,089,234.35

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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.