Home / 38,853,830.13-53,617,433.67-21,212,129.76

Finding the Fourth Proportional to 38,853,830.13, 53,617,433.67 and 21,212,129.76

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Solution

The fourth proportional to 38,853,830.13, 53,617,433.67 and 21,212,129.76 is: 29,272,273.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,853,830.13 : 53,617,433.67 = 21,212,129.76 : x
  2. Step 2: Convert to fraction form
    38,853,830.13/53,617,433.67 = 21,212,129.76/x
  3. Step 3: Cross multiply
    38,853,830.13x = 53,617,433.67 × 21,212,129.76
  4. Step 4: Simplify right side
    38,853,830.13x = 1,137,339,960,406,233.25
  5. Step 5: Solve for x
    x = 1,137,339,960,406,233.25/38,853,830.13
  6. Step 6: Final answer
    x = 29,272,273.97

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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.