Home / 20,557,348.84-28,368,185.70-11,264,863.72

Finding the Fourth Proportional to 20,557,348.84, 28,368,185.70 and 11,264,863.72

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Solution

The fourth proportional to 20,557,348.84, 28,368,185.70 and 11,264,863.72 is: 15,544,988.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,557,348.84 : 28,368,185.70 = 11,264,863.72 : x
  2. Step 2: Convert to fraction form
    20,557,348.84/28,368,185.70 = 11,264,863.72/x
  3. Step 3: Cross multiply
    20,557,348.84x = 28,368,185.70 × 11,264,863.72
  4. Step 4: Simplify right side
    20,557,348.84x = 319,563,745,894,152.81
  5. Step 5: Solve for x
    x = 319,563,745,894,152.81/20,557,348.84
  6. Step 6: Final answer
    x = 15,544,988.24

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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.