Home / 39,288,108.06-54,217,642.89-21,406,239.47

Finding the Fourth Proportional to 39,288,108.06, 54,217,642.89 and 21,406,239.47

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Solution

The fourth proportional to 39,288,108.06, 54,217,642.89 and 21,406,239.47 is: 29,540,639.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,288,108.06 : 54,217,642.89 = 21,406,239.47 : x
  2. Step 2: Convert to fraction form
    39,288,108.06/54,217,642.89 = 21,406,239.47/x
  3. Step 3: Cross multiply
    39,288,108.06x = 54,217,642.89 × 21,406,239.47
  4. Step 4: Simplify right side
    39,288,108.06x = 1,160,595,846,931,194.75
  5. Step 5: Solve for x
    x = 1,160,595,846,931,194.75/39,288,108.06
  6. Step 6: Final answer
    x = 29,540,639.76

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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.