Home / 117,920,608.40-162,731,085.19-68,390,340

Finding the Fourth Proportional to 117,920,608.40, 162,731,085.19 and 68,390,340

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Solution

The fourth proportional to 117,920,608.40, 162,731,085.19 and 68,390,340 is: 94,379,043.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,920,608.40 : 162,731,085.19 = 68,390,340 : x
  2. Step 2: Convert to fraction form
    117,920,608.40/162,731,085.19 = 68,390,340/x
  3. Step 3: Cross multiply
    117,920,608.40x = 162,731,085.19 × 68,390,340
  4. Step 4: Simplify right side
    117,920,608.40x = 11,129,234,244,542,088
  5. Step 5: Solve for x
    x = 11,129,234,244,542,088/117,920,608.40
  6. Step 6: Final answer
    x = 94,379,043.63

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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.