Home / 21,273,046.28-31,885,364.04-12,945,482.98

Finding the Fourth Proportional to 21,273,046.28, 31,885,364.04 and 12,945,482.98

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Solution

The fourth proportional to 21,273,046.28, 31,885,364.04 and 12,945,482.98 is: 19,403,494.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,273,046.28 : 31,885,364.04 = 12,945,482.98 : x
  2. Step 2: Convert to fraction form
    21,273,046.28/31,885,364.04 = 12,945,482.98/x
  3. Step 3: Cross multiply
    21,273,046.28x = 31,885,364.04 × 12,945,482.98
  4. Step 4: Simplify right side
    21,273,046.28x = 412,771,437,490,924.06
  5. Step 5: Solve for x
    x = 412,771,437,490,924.06/21,273,046.28
  6. Step 6: Final answer
    x = 19,403,494.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.