Home / 356,021,620.40-534,032,430.60-218,272,113.20

Finding the Fourth Proportional to 356,021,620.40, 534,032,430.60 and 218,272,113.20

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Solution

The fourth proportional to 356,021,620.40, 534,032,430.60 and 218,272,113.20 is: 327,408,169.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,021,620.40 : 534,032,430.60 = 218,272,113.20 : x
  2. Step 2: Convert to fraction form
    356,021,620.40/534,032,430.60 = 218,272,113.20/x
  3. Step 3: Cross multiply
    356,021,620.40x = 534,032,430.60 × 218,272,113.20
  4. Step 4: Simplify right side
    356,021,620.40x = 116,564,387,144,394,336
  5. Step 5: Solve for x
    x = 116,564,387,144,394,336/356,021,620.40
  6. Step 6: Final answer
    x = 327,408,169.80

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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.