Home / 28,926,776.48-39,919,441.44-15,875,249.72

Finding the Fourth Proportional to 28,926,776.48, 39,919,441.44 and 15,875,249.72

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Solution

The fourth proportional to 28,926,776.48, 39,919,441.44 and 15,875,249.72 is: 21,908,113.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,926,776.48 : 39,919,441.44 = 15,875,249.72 : x
  2. Step 2: Convert to fraction form
    28,926,776.48/39,919,441.44 = 15,875,249.72/x
  3. Step 3: Cross multiply
    28,926,776.48x = 39,919,441.44 × 15,875,249.72
  4. Step 4: Simplify right side
    28,926,776.48x = 633,731,101,542,916.38
  5. Step 5: Solve for x
    x = 633,731,101,542,916.38/28,926,776.48
  6. Step 6: Final answer
    x = 21,908,113.47

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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.