Home / 109,189,575.42-163,865,711.79-80,118,534.75

Finding the Fourth Proportional to 109,189,575.42, 163,865,711.79 and 80,118,534.75

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Solution

The fourth proportional to 109,189,575.42, 163,865,711.79 and 80,118,534.75 is: 120,237,492.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,189,575.42 : 163,865,711.79 = 80,118,534.75 : x
  2. Step 2: Convert to fraction form
    109,189,575.42/163,865,711.79 = 80,118,534.75/x
  3. Step 3: Cross multiply
    109,189,575.42x = 163,865,711.79 × 80,118,534.75
  4. Step 4: Simplify right side
    109,189,575.42x = 13,128,680,724,380,600
  5. Step 5: Solve for x
    x = 13,128,680,724,380,600/109,189,575.42
  6. Step 6: Final answer
    x = 120,237,492.21

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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.