Home / 121,232,190.60-181,848,285.90-72,764,771.40

Finding the Fourth Proportional to 121,232,190.60, 181,848,285.90 and 72,764,771.40

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Solution

The fourth proportional to 121,232,190.60, 181,848,285.90 and 72,764,771.40 is: 109,147,157.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,232,190.60 : 181,848,285.90 = 72,764,771.40 : x
  2. Step 2: Convert to fraction form
    121,232,190.60/181,848,285.90 = 72,764,771.40/x
  3. Step 3: Cross multiply
    121,232,190.60x = 181,848,285.90 × 72,764,771.40
  4. Step 4: Simplify right side
    121,232,190.60x = 13,232,148,952,995,344
  5. Step 5: Solve for x
    x = 13,232,148,952,995,344/121,232,190.60
  6. Step 6: Final answer
    x = 109,147,157.10

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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.