Home / 28,943,316.12-39,942,899.50-15,891,125.16

Finding the Fourth Proportional to 28,943,316.12, 39,942,899.50 and 15,891,125.16

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Solution

The fourth proportional to 28,943,316.12, 39,942,899.50 and 15,891,125.16 is: 21,930,369.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,943,316.12 : 39,942,899.50 = 15,891,125.16 : x
  2. Step 2: Convert to fraction form
    28,943,316.12/39,942,899.50 = 15,891,125.16/x
  3. Step 3: Cross multiply
    28,943,316.12x = 39,942,899.50 × 15,891,125.16
  4. Step 4: Simplify right side
    28,943,316.12x = 634,737,615,207,801.38
  5. Step 5: Solve for x
    x = 634,737,615,207,801.38/28,943,316.12
  6. Step 6: Final answer
    x = 21,930,369.44

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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.