Home / 1,306,630,797.64-1,960,233,179.88-386,435,396.68

Finding the Fourth Proportional to 1,306,630,797.64, 1,960,233,179.88 and 386,435,396.68

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Solution

The fourth proportional to 1,306,630,797.64, 1,960,233,179.88 and 386,435,396.68 is: 579,737,970.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,306,630,797.64 : 1,960,233,179.88 = 386,435,396.68 : x
  2. Step 2: Convert to fraction form
    1,306,630,797.64/1,960,233,179.88 = 386,435,396.68/x
  3. Step 3: Cross multiply
    1,306,630,797.64x = 1,960,233,179.88 × 386,435,396.68
  4. Step 4: Simplify right side
    1,306,630,797.64x = 757,503,486,452,225,664
  5. Step 5: Solve for x
    x = 757,503,486,452,225,664/1,306,630,797.64
  6. Step 6: Final answer
    x = 579,737,970.22

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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.