Home / 21,020,936.16-29,009,885.76-11,853,382.08

Finding the Fourth Proportional to 21,020,936.16, 29,009,885.76 and 11,853,382.08

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Solution

The fourth proportional to 21,020,936.16, 29,009,885.76 and 11,853,382.08 is: 16,358,227.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,020,936.16 : 29,009,885.76 = 11,853,382.08 : x
  2. Step 2: Convert to fraction form
    21,020,936.16/29,009,885.76 = 11,853,382.08/x
  3. Step 3: Cross multiply
    21,020,936.16x = 29,009,885.76 × 11,853,382.08
  4. Step 4: Simplify right side
    21,020,936.16x = 343,865,260,010,431.19
  5. Step 5: Solve for x
    x = 343,865,260,010,431.19/21,020,936.16
  6. Step 6: Final answer
    x = 16,358,227.69

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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.