Home / 319,862,696.40-479,794,049.64-77,525,600.40

Finding the Fourth Proportional to 319,862,696.40, 479,794,049.64 and 77,525,600.40

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Solution

The fourth proportional to 319,862,696.40, 479,794,049.64 and 77,525,600.40 is: 116,288,401.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,862,696.40 : 479,794,049.64 = 77,525,600.40 : x
  2. Step 2: Convert to fraction form
    319,862,696.40/479,794,049.64 = 77,525,600.40/x
  3. Step 3: Cross multiply
    319,862,696.40x = 479,794,049.64 × 77,525,600.40
  4. Step 4: Simplify right side
    319,862,696.40x = 37,196,321,766,688,408
  5. Step 5: Solve for x
    x = 37,196,321,766,688,408/319,862,696.40
  6. Step 6: Final answer
    x = 116,288,401.82

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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.