Home / 120,142,679.36-180,232,008.53-43,483,643.71

Finding the Fourth Proportional to 120,142,679.36, 180,232,008.53 and 43,483,643.71

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Solution

The fourth proportional to 120,142,679.36, 180,232,008.53 and 43,483,643.71 is: 65,231,976.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,142,679.36 : 180,232,008.53 = 43,483,643.71 : x
  2. Step 2: Convert to fraction form
    120,142,679.36/180,232,008.53 = 43,483,643.71/x
  3. Step 3: Cross multiply
    120,142,679.36x = 180,232,008.53 × 43,483,643.71
  4. Step 4: Simplify right side
    120,142,679.36x = 7,837,144,443,388,203
  5. Step 5: Solve for x
    x = 7,837,144,443,388,203/120,142,679.36
  6. Step 6: Final answer
    x = 65,231,976.56

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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.