Home / 117,642,486.40-176,463,729.60-90,432,707.20

Finding the Fourth Proportional to 117,642,486.40, 176,463,729.60 and 90,432,707.20

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Solution

The fourth proportional to 117,642,486.40, 176,463,729.60 and 90,432,707.20 is: 135,649,060.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,642,486.40 : 176,463,729.60 = 90,432,707.20 : x
  2. Step 2: Convert to fraction form
    117,642,486.40/176,463,729.60 = 90,432,707.20/x
  3. Step 3: Cross multiply
    117,642,486.40x = 176,463,729.60 × 90,432,707.20
  4. Step 4: Simplify right side
    117,642,486.40x = 15,958,092,790,336,774
  5. Step 5: Solve for x
    x = 15,958,092,790,336,774/117,642,486.40
  6. Step 6: Final answer
    x = 135,649,060.80

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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.