Home / 358,859,679.75-538,289,519.02-86,230,446.75

Finding the Fourth Proportional to 358,859,679.75, 538,289,519.02 and 86,230,446.75

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Solution

The fourth proportional to 358,859,679.75, 538,289,519.02 and 86,230,446.75 is: 129,345,669.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,859,679.75 : 538,289,519.02 = 86,230,446.75 : x
  2. Step 2: Convert to fraction form
    358,859,679.75/538,289,519.02 = 86,230,446.75/x
  3. Step 3: Cross multiply
    358,859,679.75x = 538,289,519.02 × 86,230,446.75
  4. Step 4: Simplify right side
    358,859,679.75x = 46,416,945,705,721,648
  5. Step 5: Solve for x
    x = 46,416,945,705,721,648/358,859,679.75
  6. Step 6: Final answer
    x = 129,345,669.98

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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.