Home / 72,557,113.26-100,128,816.33-39,962,065.26

Finding the Fourth Proportional to 72,557,113.26, 100,128,816.33 and 39,962,065.26

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Solution

The fourth proportional to 72,557,113.26, 100,128,816.33 and 39,962,065.26 is: 55,147,650.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,557,113.26 : 100,128,816.33 = 39,962,065.26 : x
  2. Step 2: Convert to fraction form
    72,557,113.26/100,128,816.33 = 39,962,065.26/x
  3. Step 3: Cross multiply
    72,557,113.26x = 100,128,816.33 × 39,962,065.26
  4. Step 4: Simplify right side
    72,557,113.26x = 4,001,354,292,586,013.50
  5. Step 5: Solve for x
    x = 4,001,354,292,586,013.50/72,557,113.26
  6. Step 6: Final answer
    x = 55,147,650.08

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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.