Home / 27,759,729-38,309,623.32-15,369,822.72

Finding the Fourth Proportional to 27,759,729, 38,309,623.32 and 15,369,822.72

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Solution

The fourth proportional to 27,759,729, 38,309,623.32 and 15,369,822.72 is: 21,211,018.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,759,729 : 38,309,623.32 = 15,369,822.72 : x
  2. Step 2: Convert to fraction form
    27,759,729/38,309,623.32 = 15,369,822.72/x
  3. Step 3: Cross multiply
    27,759,729x = 38,309,623.32 × 15,369,822.72
  4. Step 4: Simplify right side
    27,759,729x = 588,812,118,898,377.88
  5. Step 5: Solve for x
    x = 588,812,118,898,377.88/27,759,729
  6. Step 6: Final answer
    x = 21,211,018.27

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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.