Home / 78,003,178.40-117,004,767.60-37,692,394.40

Finding the Fourth Proportional to 78,003,178.40, 117,004,767.60 and 37,692,394.40

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Solution

The fourth proportional to 78,003,178.40, 117,004,767.60 and 37,692,394.40 is: 56,538,591.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,003,178.40 : 117,004,767.60 = 37,692,394.40 : x
  2. Step 2: Convert to fraction form
    78,003,178.40/117,004,767.60 = 37,692,394.40/x
  3. Step 3: Cross multiply
    78,003,178.40x = 117,004,767.60 × 37,692,394.40
  4. Step 4: Simplify right side
    78,003,178.40x = 4,410,189,847,059,541
  5. Step 5: Solve for x
    x = 4,410,189,847,059,541/78,003,178.40
  6. Step 6: Final answer
    x = 56,538,591.60

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1.5x scale

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.