Home / 178,881,334.40-268,130,679.18-81,691,404.32

Finding the Fourth Proportional to 178,881,334.40, 268,130,679.18 and 81,691,404.32

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Solution

The fourth proportional to 178,881,334.40, 268,130,679.18 and 81,691,404.32 is: 122,449,733.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,881,334.40 : 268,130,679.18 = 81,691,404.32 : x
  2. Step 2: Convert to fraction form
    178,881,334.40/268,130,679.18 = 81,691,404.32/x
  3. Step 3: Cross multiply
    178,881,334.40x = 268,130,679.18 × 81,691,404.32
  4. Step 4: Simplify right side
    178,881,334.40x = 21,903,971,723,489,584
  5. Step 5: Solve for x
    x = 21,903,971,723,489,584/178,881,334.40
  6. Step 6: Final answer
    x = 122,449,733.49

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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.