Home / 352,272,002.40-528,408,003.60-261,572,738.40

Finding the Fourth Proportional to 352,272,002.40, 528,408,003.60 and 261,572,738.40

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Solution

The fourth proportional to 352,272,002.40, 528,408,003.60 and 261,572,738.40 is: 392,359,107.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,272,002.40 : 528,408,003.60 = 261,572,738.40 : x
  2. Step 2: Convert to fraction form
    352,272,002.40/528,408,003.60 = 261,572,738.40/x
  3. Step 3: Cross multiply
    352,272,002.40x = 528,408,003.60 × 261,572,738.40
  4. Step 4: Simplify right side
    352,272,002.40x = 138,217,128,494,129,072
  5. Step 5: Solve for x
    x = 138,217,128,494,129,072/352,272,002.40
  6. Step 6: Final answer
    x = 392,359,107.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.