Home / 279,322,867.22-385,477,503.81-155,563,524.50

Finding the Fourth Proportional to 279,322,867.22, 385,477,503.81 and 155,563,524.50

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Solution

The fourth proportional to 279,322,867.22, 385,477,503.81 and 155,563,524.50 is: 214,684,317.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,322,867.22 : 385,477,503.81 = 155,563,524.50 : x
  2. Step 2: Convert to fraction form
    279,322,867.22/385,477,503.81 = 155,563,524.50/x
  3. Step 3: Cross multiply
    279,322,867.22x = 385,477,503.81 × 155,563,524.50
  4. Step 4: Simplify right side
    279,322,867.22x = 59,966,239,108,145,776
  5. Step 5: Solve for x
    x = 59,966,239,108,145,776/279,322,867.22
  6. Step 6: Final answer
    x = 214,684,317.49

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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.