Home / 280,961,275.20-421,441,912.80-276,656,603.10

Finding the Fourth Proportional to 280,961,275.20, 421,441,912.80 and 276,656,603.10

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Solution

The fourth proportional to 280,961,275.20, 421,441,912.80 and 276,656,603.10 is: 414,984,904.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,961,275.20 : 421,441,912.80 = 276,656,603.10 : x
  2. Step 2: Convert to fraction form
    280,961,275.20/421,441,912.80 = 276,656,603.10/x
  3. Step 3: Cross multiply
    280,961,275.20x = 421,441,912.80 × 276,656,603.10
  4. Step 4: Simplify right side
    280,961,275.20x = 116,594,687,999,214,416
  5. Step 5: Solve for x
    x = 116,594,687,999,214,416/280,961,275.20
  6. Step 6: Final answer
    x = 414,984,904.65

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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.