Home / 805,143,187.63-1,207,415,747.41-280,377,529.45

Finding the Fourth Proportional to 805,143,187.63, 1,207,415,747.41 and 280,377,529.45

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Solution

The fourth proportional to 805,143,187.63, 1,207,415,747.41 and 280,377,529.45 is: 420,462,160.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,143,187.63 : 1,207,415,747.41 = 280,377,529.45 : x
  2. Step 2: Convert to fraction form
    805,143,187.63/1,207,415,747.41 = 280,377,529.45/x
  3. Step 3: Cross multiply
    805,143,187.63x = 1,207,415,747.41 × 280,377,529.45
  4. Step 4: Simplify right side
    805,143,187.63x = 338,532,244,277,841,024
  5. Step 5: Solve for x
    x = 338,532,244,277,841,024/805,143,187.63
  6. Step 6: Final answer
    x = 420,462,160.62

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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.