Home / 20,645,881.48-28,483,132.98-11,942,437.96

Finding the Fourth Proportional to 20,645,881.48, 28,483,132.98 and 11,942,437.96

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Solution

The fourth proportional to 20,645,881.48, 28,483,132.98 and 11,942,437.96 is: 16,475,830.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,645,881.48 : 28,483,132.98 = 11,942,437.96 : x
  2. Step 2: Convert to fraction form
    20,645,881.48/28,483,132.98 = 11,942,437.96/x
  3. Step 3: Cross multiply
    20,645,881.48x = 28,483,132.98 × 11,942,437.96
  4. Step 4: Simplify right side
    20,645,881.48x = 340,158,048,520,079.94
  5. Step 5: Solve for x
    x = 340,158,048,520,079.94/20,645,881.48
  6. Step 6: Final answer
    x = 16,475,830.73

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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.