Home / 78,003,205.40-117,004,808.10-37,692,421.40

Finding the Fourth Proportional to 78,003,205.40, 117,004,808.10 and 37,692,421.40

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Solution

The fourth proportional to 78,003,205.40, 117,004,808.10 and 37,692,421.40 is: 56,538,632.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,003,205.40 : 117,004,808.10 = 37,692,421.40 : x
  2. Step 2: Convert to fraction form
    78,003,205.40/117,004,808.10 = 37,692,421.40/x
  3. Step 3: Cross multiply
    78,003,205.40x = 117,004,808.10 × 37,692,421.40
  4. Step 4: Simplify right side
    78,003,205.40x = 4,410,194,532,731,333
  5. Step 5: Solve for x
    x = 4,410,194,532,731,333/78,003,205.40
  6. Step 6: Final answer
    x = 56,538,632.10

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Similar ratio
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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.