Home / 20,996,925.90-28,975,757.50-11,339,133.90

Finding the Fourth Proportional to 20,996,925.90, 28,975,757.50 and 11,339,133.90

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Solution

The fourth proportional to 20,996,925.90, 28,975,757.50 and 11,339,133.90 is: 15,648,004.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,996,925.90 : 28,975,757.50 = 11,339,133.90 : x
  2. Step 2: Convert to fraction form
    20,996,925.90/28,975,757.50 = 11,339,133.90/x
  3. Step 3: Cross multiply
    20,996,925.90x = 28,975,757.50 × 11,339,133.90
  4. Step 4: Simplify right side
    20,996,925.90x = 328,559,994,146,429.25
  5. Step 5: Solve for x
    x = 328,559,994,146,429.25/20,996,925.90
  6. Step 6: Final answer
    x = 15,648,004.65

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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.