Home / 513,737,639.03-708,957,946.94-278,788,299.51

Finding the Fourth Proportional to 513,737,639.03, 708,957,946.94 and 278,788,299.51

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Solution

The fourth proportional to 513,737,639.03, 708,957,946.94 and 278,788,299.51 is: 384,727,856.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,737,639.03 : 708,957,946.94 = 278,788,299.51 : x
  2. Step 2: Convert to fraction form
    513,737,639.03/708,957,946.94 = 278,788,299.51/x
  3. Step 3: Cross multiply
    513,737,639.03x = 708,957,946.94 × 278,788,299.51
  4. Step 4: Simplify right side
    513,737,639.03x = 197,649,180,451,503,424
  5. Step 5: Solve for x
    x = 197,649,180,451,503,424/513,737,639.03
  6. Step 6: Final answer
    x = 384,727,856.08

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.