Home / 86,003,719.20-129,042,903.60-43,453,447.20

Finding the Fourth Proportional to 86,003,719.20, 129,042,903.60 and 43,453,447.20

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Solution

The fourth proportional to 86,003,719.20, 129,042,903.60 and 43,453,447.20 is: 65,199,029.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,003,719.20 : 129,042,903.60 = 43,453,447.20 : x
  2. Step 2: Convert to fraction form
    86,003,719.20/129,042,903.60 = 43,453,447.20/x
  3. Step 3: Cross multiply
    86,003,719.20x = 129,042,903.60 × 43,453,447.20
  4. Step 4: Simplify right side
    86,003,719.20x = 5,607,358,998,117,290
  5. Step 5: Solve for x
    x = 5,607,358,998,117,290/86,003,719.20
  6. Step 6: Final answer
    x = 65,199,029.18

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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.