Home / 78,801,848.60-117,883,908.30-69,235,910.60

Finding the Fourth Proportional to 78,801,848.60, 117,883,908.30 and 69,235,910.60

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Solution

The fourth proportional to 78,801,848.60, 117,883,908.30 and 69,235,910.60 is: 103,573,709.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,801,848.60 : 117,883,908.30 = 69,235,910.60 : x
  2. Step 2: Convert to fraction form
    78,801,848.60/117,883,908.30 = 69,235,910.60/x
  3. Step 3: Cross multiply
    78,801,848.60x = 117,883,908.30 × 69,235,910.60
  4. Step 4: Simplify right side
    78,801,848.60x = 8,161,799,736,237,397
  5. Step 5: Solve for x
    x = 8,161,799,736,237,397/78,801,848.60
  6. Step 6: Final answer
    x = 103,573,709.01

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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.