Home / 130,571,464.31-180,188,619.62-71,832,868.87

Finding the Fourth Proportional to 130,571,464.31, 180,188,619.62 and 71,832,868.87

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Solution

The fourth proportional to 130,571,464.31, 180,188,619.62 and 71,832,868.87 is: 99,129,358.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,571,464.31 : 180,188,619.62 = 71,832,868.87 : x
  2. Step 2: Convert to fraction form
    130,571,464.31/180,188,619.62 = 71,832,868.87/x
  3. Step 3: Cross multiply
    130,571,464.31x = 180,188,619.62 × 71,832,868.87
  4. Step 4: Simplify right side
    130,571,464.31x = 12,943,465,483,769,662
  5. Step 5: Solve for x
    x = 12,943,465,483,769,662/130,571,464.31
  6. Step 6: Final answer
    x = 99,129,358.41

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.