Home / 38,988,225.72-53,801,705.74-21,343,745.68

Finding the Fourth Proportional to 38,988,225.72, 53,801,705.74 and 21,343,745.68

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Solution

The fourth proportional to 38,988,225.72, 53,801,705.74 and 21,343,745.68 is: 29,453,249.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,988,225.72 : 53,801,705.74 = 21,343,745.68 : x
  2. Step 2: Convert to fraction form
    38,988,225.72/53,801,705.74 = 21,343,745.68/x
  3. Step 3: Cross multiply
    38,988,225.72x = 53,801,705.74 × 21,343,745.68
  4. Step 4: Simplify right side
    38,988,225.72x = 1,148,329,924,464,756.25
  5. Step 5: Solve for x
    x = 1,148,329,924,464,756.25/38,988,225.72
  6. Step 6: Final answer
    x = 29,453,249.11

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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.