Home / 28,974,448.27-39,985,056.88-15,921,710.56

Finding the Fourth Proportional to 28,974,448.27, 39,985,056.88 and 15,921,710.56

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Solution

The fourth proportional to 28,974,448.27, 39,985,056.88 and 15,921,710.56 is: 21,972,135.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,974,448.27 : 39,985,056.88 = 15,921,710.56 : x
  2. Step 2: Convert to fraction form
    28,974,448.27/39,985,056.88 = 15,921,710.56/x
  3. Step 3: Cross multiply
    28,974,448.27x = 39,985,056.88 × 15,921,710.56
  4. Step 4: Simplify right side
    28,974,448.27x = 636,630,502,378,673.62
  5. Step 5: Solve for x
    x = 636,630,502,378,673.62/28,974,448.27
  6. Step 6: Final answer
    x = 21,972,135.46

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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.