Home / 78,003,157.90-117,004,736.85-37,692,373.90

Finding the Fourth Proportional to 78,003,157.90, 117,004,736.85 and 37,692,373.90

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Solution

The fourth proportional to 78,003,157.90, 117,004,736.85 and 37,692,373.90 is: 56,538,560.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,003,157.90 : 117,004,736.85 = 37,692,373.90 : x
  2. Step 2: Convert to fraction form
    78,003,157.90/117,004,736.85 = 37,692,373.90/x
  3. Step 3: Cross multiply
    78,003,157.90x = 117,004,736.85 × 37,692,373.90
  4. Step 4: Simplify right side
    78,003,157.90x = 4,410,186,289,421,308
  5. Step 5: Solve for x
    x = 4,410,186,289,421,308/78,003,157.90
  6. Step 6: Final answer
    x = 56,538,560.85

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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.