Home / 480,905,989.28-720,910,210.08-189,775,522.88

Finding the Fourth Proportional to 480,905,989.28, 720,910,210.08 and 189,775,522.88

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Solution

The fourth proportional to 480,905,989.28, 720,910,210.08 and 189,775,522.88 is: 284,486,188.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,905,989.28 : 720,910,210.08 = 189,775,522.88 : x
  2. Step 2: Convert to fraction form
    480,905,989.28/720,910,210.08 = 189,775,522.88/x
  3. Step 3: Cross multiply
    480,905,989.28x = 720,910,210.08 × 189,775,522.88
  4. Step 4: Simplify right side
    480,905,989.28x = 136,811,112,067,462,656
  5. Step 5: Solve for x
    x = 136,811,112,067,462,656/480,905,989.28
  6. Step 6: Final answer
    x = 284,486,188.81

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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.