Home / 20,678,280.96-31,023,751.68-10,588,039.68

Finding the Fourth Proportional to 20,678,280.96, 31,023,751.68 and 10,588,039.68

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Solution

The fourth proportional to 20,678,280.96, 31,023,751.68 and 10,588,039.68 is: 15,885,300.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,678,280.96 : 31,023,751.68 = 10,588,039.68 : x
  2. Step 2: Convert to fraction form
    20,678,280.96/31,023,751.68 = 10,588,039.68/x
  3. Step 3: Cross multiply
    20,678,280.96x = 31,023,751.68 × 10,588,039.68
  4. Step 4: Simplify right side
    20,678,280.96x = 328,480,713,810,306.62
  5. Step 5: Solve for x
    x = 328,480,713,810,306.62/20,678,280.96
  6. Step 6: Final answer
    x = 15,885,300.84

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.