Home / 791,435,436.05-1,187,163,257.34-209,164,650.89

Finding the Fourth Proportional to 791,435,436.05, 1,187,163,257.34 and 209,164,650.89

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Solution

The fourth proportional to 791,435,436.05, 1,187,163,257.34 and 209,164,650.89 is: 313,749,646.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    791,435,436.05 : 1,187,163,257.34 = 209,164,650.89 : x
  2. Step 2: Convert to fraction form
    791,435,436.05/1,187,163,257.34 = 209,164,650.89/x
  3. Step 3: Cross multiply
    791,435,436.05x = 1,187,163,257.34 × 209,164,650.89
  4. Step 4: Simplify right side
    791,435,436.05x = 248,312,588,270,688,384
  5. Step 5: Solve for x
    x = 248,312,588,270,688,384/791,435,436.05
  6. Step 6: Final answer
    x = 313,749,646.48

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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.