Home / 28,943,309.61-39,942,890.51-15,891,118.65

Finding the Fourth Proportional to 28,943,309.61, 39,942,890.51 and 15,891,118.65

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Solution

The fourth proportional to 28,943,309.61, 39,942,890.51 and 15,891,118.65 is: 21,930,360.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,943,309.61 : 39,942,890.51 = 15,891,118.65 : x
  2. Step 2: Convert to fraction form
    28,943,309.61/39,942,890.51 = 15,891,118.65/x
  3. Step 3: Cross multiply
    28,943,309.61x = 39,942,890.51 × 15,891,118.65
  4. Step 4: Simplify right side
    28,943,309.61x = 634,737,212,238,913.50
  5. Step 5: Solve for x
    x = 634,737,212,238,913.50/28,943,309.61
  6. Step 6: Final answer
    x = 21,930,360.45

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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.