Home / 78,572,271.33-108,412,633.83-47,640,043.17

Finding the Fourth Proportional to 78,572,271.33, 108,412,633.83 and 47,640,043.17

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Solution

The fourth proportional to 78,572,271.33, 108,412,633.83 and 47,640,043.17 is: 65,732,891.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,572,271.33 : 108,412,633.83 = 47,640,043.17 : x
  2. Step 2: Convert to fraction form
    78,572,271.33/108,412,633.83 = 47,640,043.17/x
  3. Step 3: Cross multiply
    78,572,271.33x = 108,412,633.83 × 47,640,043.17
  4. Step 4: Simplify right side
    78,572,271.33x = 5,164,782,555,834,603
  5. Step 5: Solve for x
    x = 5,164,782,555,834,603/78,572,271.33
  6. Step 6: Final answer
    x = 65,732,891.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.