Home / 20,996,925.52-28,975,756.98-11,339,133.52

Finding the Fourth Proportional to 20,996,925.52, 28,975,756.98 and 11,339,133.52

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Solution

The fourth proportional to 20,996,925.52, 28,975,756.98 and 11,339,133.52 is: 15,648,004.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,996,925.52 : 28,975,756.98 = 11,339,133.52 : x
  2. Step 2: Convert to fraction form
    20,996,925.52/28,975,756.98 = 11,339,133.52/x
  3. Step 3: Cross multiply
    20,996,925.52x = 28,975,756.98 × 11,339,133.52
  4. Step 4: Simplify right side
    20,996,925.52x = 328,559,977,239,291.94
  5. Step 5: Solve for x
    x = 328,559,977,239,291.94/20,996,925.52
  6. Step 6: Final answer
    x = 15,648,004.13

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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.