Home / 435,215,999.80-652,823,999.70-378,528,959.80

Finding the Fourth Proportional to 435,215,999.80, 652,823,999.70 and 378,528,959.80

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Solution

The fourth proportional to 435,215,999.80, 652,823,999.70 and 378,528,959.80 is: 567,793,439.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,215,999.80 : 652,823,999.70 = 378,528,959.80 : x
  2. Step 2: Convert to fraction form
    435,215,999.80/652,823,999.70 = 378,528,959.80/x
  3. Step 3: Cross multiply
    435,215,999.80x = 652,823,999.70 × 378,528,959.80
  4. Step 4: Simplify right side
    435,215,999.80x = 247,112,789,538,916,544
  5. Step 5: Solve for x
    x = 247,112,789,538,916,544/435,215,999.80
  6. Step 6: Final answer
    x = 567,793,439.70

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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.