Home / 51,019,538.40-76,529,307.60-20,749,125.60

Finding the Fourth Proportional to 51,019,538.40, 76,529,307.60 and 20,749,125.60

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Solution

The fourth proportional to 51,019,538.40, 76,529,307.60 and 20,749,125.60 is: 31,123,688.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,019,538.40 : 76,529,307.60 = 20,749,125.60 : x
  2. Step 2: Convert to fraction form
    51,019,538.40/76,529,307.60 = 20,749,125.60/x
  3. Step 3: Cross multiply
    51,019,538.40x = 76,529,307.60 × 20,749,125.60
  4. Step 4: Simplify right side
    51,019,538.40x = 1,587,916,215,473,434.50
  5. Step 5: Solve for x
    x = 1,587,916,215,473,434.50/51,019,538.40
  6. Step 6: Final answer
    x = 31,123,688.40

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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.