Home / 324,038,486.21-486,058,990.32-78,394,726.89

Finding the Fourth Proportional to 324,038,486.21, 486,058,990.32 and 78,394,726.89

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Solution

The fourth proportional to 324,038,486.21, 486,058,990.32 and 78,394,726.89 is: 117,592,395.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,038,486.21 : 486,058,990.32 = 78,394,726.89 : x
  2. Step 2: Convert to fraction form
    324,038,486.21/486,058,990.32 = 78,394,726.89/x
  3. Step 3: Cross multiply
    324,038,486.21x = 486,058,990.32 × 78,394,726.89
  4. Step 4: Simplify right side
    324,038,486.21x = 38,104,461,798,565,552
  5. Step 5: Solve for x
    x = 38,104,461,798,565,552/324,038,486.21
  6. Step 6: Final answer
    x = 117,592,395.41

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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.