Home / 288,719,154.72-433,104,181.53-81,459,380.88

Finding the Fourth Proportional to 288,719,154.72, 433,104,181.53 and 81,459,380.88

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Solution

The fourth proportional to 288,719,154.72, 433,104,181.53 and 81,459,380.88 is: 122,196,251.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,719,154.72 : 433,104,181.53 = 81,459,380.88 : x
  2. Step 2: Convert to fraction form
    288,719,154.72/433,104,181.53 = 81,459,380.88/x
  3. Step 3: Cross multiply
    288,719,154.72x = 433,104,181.53 × 81,459,380.88
  4. Step 4: Simplify right side
    288,719,154.72x = 35,280,398,483,972,928
  5. Step 5: Solve for x
    x = 35,280,398,483,972,928/288,719,154.72
  6. Step 6: Final answer
    x = 122,196,251.64

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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.