Home / 121,232,185.10-181,848,277.65-72,764,765.90

Finding the Fourth Proportional to 121,232,185.10, 181,848,277.65 and 72,764,765.90

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Solution

The fourth proportional to 121,232,185.10, 181,848,277.65 and 72,764,765.90 is: 109,147,148.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,232,185.10 : 181,848,277.65 = 72,764,765.90 : x
  2. Step 2: Convert to fraction form
    121,232,185.10/181,848,277.65 = 72,764,765.90/x
  3. Step 3: Cross multiply
    121,232,185.10x = 181,848,277.65 × 72,764,765.90
  4. Step 4: Simplify right side
    121,232,185.10x = 13,232,147,352,520,454
  5. Step 5: Solve for x
    x = 13,232,147,352,520,454/121,232,185.10
  6. Step 6: Final answer
    x = 109,147,148.85

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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.