Home / 28,262,821.30-39,011,151.33-16,505,261.21

Finding the Fourth Proportional to 28,262,821.30, 39,011,151.33 and 16,505,261.21

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Solution

The fourth proportional to 28,262,821.30, 39,011,151.33 and 16,505,261.21 is: 22,782,199.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,262,821.30 : 39,011,151.33 = 16,505,261.21 : x
  2. Step 2: Convert to fraction form
    28,262,821.30/39,011,151.33 = 16,505,261.21/x
  3. Step 3: Cross multiply
    28,262,821.30x = 39,011,151.33 × 16,505,261.21
  4. Step 4: Simplify right side
    28,262,821.30x = 643,889,242,804,488.88
  5. Step 5: Solve for x
    x = 643,889,242,804,488.88/28,262,821.30
  6. Step 6: Final answer
    x = 22,782,199.84

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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.