Home / 513,363,634.81-769,990,863.25-144,889,476.73

Finding the Fourth Proportional to 513,363,634.81, 769,990,863.25 and 144,889,476.73

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Solution

The fourth proportional to 513,363,634.81, 769,990,863.25 and 144,889,476.73 is: 217,318,808.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,363,634.81 : 769,990,863.25 = 144,889,476.73 : x
  2. Step 2: Convert to fraction form
    513,363,634.81/769,990,863.25 = 144,889,476.73/x
  3. Step 3: Cross multiply
    513,363,634.81x = 769,990,863.25 × 144,889,476.73
  4. Step 4: Simplify right side
    513,363,634.81x = 111,563,573,263,173,472
  5. Step 5: Solve for x
    x = 111,563,573,263,173,472/513,363,634.81
  6. Step 6: Final answer
    x = 217,318,808.15

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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.