Home / 86,629,172.09-129,856,319.44-54,303,775.04

Finding the Fourth Proportional to 86,629,172.09, 129,856,319.44 and 54,303,775.04

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Solution

The fourth proportional to 86,629,172.09, 129,856,319.44 and 54,303,775.04 is: 81,400,851.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,629,172.09 : 129,856,319.44 = 54,303,775.04 : x
  2. Step 2: Convert to fraction form
    86,629,172.09/129,856,319.44 = 54,303,775.04/x
  3. Step 3: Cross multiply
    86,629,172.09x = 129,856,319.44 × 54,303,775.04
  4. Step 4: Simplify right side
    86,629,172.09x = 7,051,688,358,581,020
  5. Step 5: Solve for x
    x = 7,051,688,358,581,020/86,629,172.09
  6. Step 6: Final answer
    x = 81,400,851.34

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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.