Home / 21,020,046.08-31,514,936.83-12,916,278.63

Finding the Fourth Proportional to 21,020,046.08, 31,514,936.83 and 12,916,278.63

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Solution

The fourth proportional to 21,020,046.08, 31,514,936.83 and 12,916,278.63 is: 19,365,119.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,020,046.08 : 31,514,936.83 = 12,916,278.63 : x
  2. Step 2: Convert to fraction form
    21,020,046.08/31,514,936.83 = 12,916,278.63/x
  3. Step 3: Cross multiply
    21,020,046.08x = 31,514,936.83 × 12,916,278.63
  4. Step 4: Simplify right side
    21,020,046.08x = 407,055,705,070,838.25
  5. Step 5: Solve for x
    x = 407,055,705,070,838.25/21,020,046.08
  6. Step 6: Final answer
    x = 19,365,119.54

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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.