Home / 343,739,515.52-515,604,221.30-84,954,757.98

Finding the Fourth Proportional to 343,739,515.52, 515,604,221.30 and 84,954,757.98

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Solution

The fourth proportional to 343,739,515.52, 515,604,221.30 and 84,954,757.98 is: 127,430,888.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,739,515.52 : 515,604,221.30 = 84,954,757.98 : x
  2. Step 2: Convert to fraction form
    343,739,515.52/515,604,221.30 = 84,954,757.98/x
  3. Step 3: Cross multiply
    343,739,515.52x = 515,604,221.30 × 84,954,757.98
  4. Step 4: Simplify right side
    343,739,515.52x = 43,803,031,834,007,864
  5. Step 5: Solve for x
    x = 43,803,031,834,007,864/343,739,515.52
  6. Step 6: Final answer
    x = 127,430,888.38

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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.