Home / 447,417,840.91-671,085,352.50-211,013,156.54

Finding the Fourth Proportional to 447,417,840.91, 671,085,352.50 and 211,013,156.54

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Solution

The fourth proportional to 447,417,840.91, 671,085,352.50 and 211,013,156.54 is: 316,500,205.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,417,840.91 : 671,085,352.50 = 211,013,156.54 : x
  2. Step 2: Convert to fraction form
    447,417,840.91/671,085,352.50 = 211,013,156.54/x
  3. Step 3: Cross multiply
    447,417,840.91x = 671,085,352.50 × 211,013,156.54
  4. Step 4: Simplify right side
    447,417,840.91x = 141,607,838,538,783,568
  5. Step 5: Solve for x
    x = 141,607,838,538,783,568/447,417,840.91
  6. Step 6: Final answer
    x = 316,500,205.38

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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.