Home / 38,591,848.11-53,256,855.18-21,189,320.49

Finding the Fourth Proportional to 38,591,848.11, 53,256,855.18 and 21,189,320.49

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Solution

The fourth proportional to 38,591,848.11, 53,256,855.18 and 21,189,320.49 is: 29,241,319.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,591,848.11 : 53,256,855.18 = 21,189,320.49 : x
  2. Step 2: Convert to fraction form
    38,591,848.11/53,256,855.18 = 21,189,320.49/x
  3. Step 3: Cross multiply
    38,591,848.11x = 53,256,855.18 × 21,189,320.49
  4. Step 4: Simplify right side
    38,591,848.11x = 1,128,476,572,698,536.50
  5. Step 5: Solve for x
    x = 1,128,476,572,698,536.50/38,591,848.11
  6. Step 6: Final answer
    x = 29,241,319.81

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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.