Home / 72,290,556.24-99,761,087.88-39,697,573.20

Finding the Fourth Proportional to 72,290,556.24, 99,761,087.88 and 39,697,573.20

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Solution

The fourth proportional to 72,290,556.24, 99,761,087.88 and 39,697,573.20 is: 54,782,717.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,290,556.24 : 99,761,087.88 = 39,697,573.20 : x
  2. Step 2: Convert to fraction form
    72,290,556.24/99,761,087.88 = 39,697,573.20/x
  3. Step 3: Cross multiply
    72,290,556.24x = 99,761,087.88 × 39,697,573.20
  4. Step 4: Simplify right side
    72,290,556.24x = 3,960,273,088,627,933
  5. Step 5: Solve for x
    x = 3,960,273,088,627,933/72,290,556.24
  6. Step 6: Final answer
    x = 54,782,717.06

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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.