Home / 20,957,379.59-28,920,962.88-11,664,801.56

Finding the Fourth Proportional to 20,957,379.59, 28,920,962.88 and 11,664,801.56

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Solution

The fourth proportional to 20,957,379.59, 28,920,962.88 and 11,664,801.56 is: 16,097,303.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,957,379.59 : 28,920,962.88 = 11,664,801.56 : x
  2. Step 2: Convert to fraction form
    20,957,379.59/28,920,962.88 = 11,664,801.56/x
  3. Step 3: Cross multiply
    20,957,379.59x = 28,920,962.88 × 11,664,801.56
  4. Step 4: Simplify right side
    20,957,379.59x = 337,357,292,774,721.25
  5. Step 5: Solve for x
    x = 337,357,292,774,721.25/20,957,379.59
  6. Step 6: Final answer
    x = 16,097,303.17

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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.