Home / 28,438,246,405.99-39,245,414,171.63-16,230,706,655.91

Finding the Fourth Proportional to 28,438,246,405.99, 39,245,414,171.63 and 16,230,706,655.91

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Solution

The fourth proportional to 28,438,246,405.99, 39,245,414,171.63 and 16,230,706,655.91 is: 22,398,737,106.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,438,246,405.99 : 39,245,414,171.63 = 16,230,706,655.91 : x
  2. Step 2: Convert to fraction form
    28,438,246,405.99/39,245,414,171.63 = 16,230,706,655.91/x
  3. Step 3: Cross multiply
    28,438,246,405.99x = 39,245,414,171.63 × 16,230,706,655.91
  4. Step 4: Simplify right side
    28,438,246,405.99x = 636,980,805,009,419,665,408
  5. Step 5: Solve for x
    x = 636,980,805,009,419,665,408/28,438,246,405.99
  6. Step 6: Final answer
    x = 22,398,737,106.21

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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.