Home / 51,469,984.91-77,219,920.24-20,748,709.91

Finding the Fourth Proportional to 51,469,984.91, 77,219,920.24 and 20,748,709.91

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Solution

The fourth proportional to 51,469,984.91, 77,219,920.24 and 20,748,709.91 is: 31,129,088.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,469,984.91 : 77,219,920.24 = 20,748,709.91 : x
  2. Step 2: Convert to fraction form
    51,469,984.91/77,219,920.24 = 20,748,709.91/x
  3. Step 3: Cross multiply
    51,469,984.91x = 77,219,920.24 × 20,748,709.91
  4. Step 4: Simplify right side
    51,469,984.91x = 1,602,213,724,333,097.50
  5. Step 5: Solve for x
    x = 1,602,213,724,333,097.50/51,469,984.91
  6. Step 6: Final answer
    x = 31,129,088.67

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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.