Home / 20,670,338.65-28,527,783.59-11,853,240.39

Finding the Fourth Proportional to 20,670,338.65, 28,527,783.59 and 11,853,240.39

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Solution

The fourth proportional to 20,670,338.65, 28,527,783.59 and 11,853,240.39 is: 16,359,029.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,670,338.65 : 28,527,783.59 = 11,853,240.39 : x
  2. Step 2: Convert to fraction form
    20,670,338.65/28,527,783.59 = 11,853,240.39/x
  3. Step 3: Cross multiply
    20,670,338.65x = 28,527,783.59 × 11,853,240.39
  4. Step 4: Simplify right side
    20,670,338.65x = 338,146,676,686,167.19
  5. Step 5: Solve for x
    x = 338,146,676,686,167.19/20,670,338.65
  6. Step 6: Final answer
    x = 16,359,029.35

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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.