Home / 501,409,469.98-691,966,679.40-278,391,162.60

Finding the Fourth Proportional to 501,409,469.98, 691,966,679.40 and 278,391,162.60

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Solution

The fourth proportional to 501,409,469.98, 691,966,679.40 and 278,391,162.60 is: 384,191,803.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,409,469.98 : 691,966,679.40 = 278,391,162.60 : x
  2. Step 2: Convert to fraction form
    501,409,469.98/691,966,679.40 = 278,391,162.60/x
  3. Step 3: Cross multiply
    501,409,469.98x = 691,966,679.40 × 278,391,162.60
  4. Step 4: Simplify right side
    501,409,469.98x = 192,637,408,358,627,488
  5. Step 5: Solve for x
    x = 192,637,408,358,627,488/501,409,469.98
  6. Step 6: Final answer
    x = 384,191,803.09

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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.