Home / 28,011,654.77-38,656,005.91-15,621,759.83

Finding the Fourth Proportional to 28,011,654.77, 38,656,005.91 and 15,621,759.83

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Solution

The fourth proportional to 28,011,654.77, 38,656,005.91 and 15,621,759.83 is: 21,557,985.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,011,654.77 : 38,656,005.91 = 15,621,759.83 : x
  2. Step 2: Convert to fraction form
    28,011,654.77/38,656,005.91 = 15,621,759.83/x
  3. Step 3: Cross multiply
    28,011,654.77x = 38,656,005.91 × 15,621,759.83
  4. Step 4: Simplify right side
    28,011,654.77x = 603,874,840,370,666.12
  5. Step 5: Solve for x
    x = 603,874,840,370,666.12/28,011,654.77
  6. Step 6: Final answer
    x = 21,557,985.25

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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.