Home / 21,513,791.81-29,688,278.60-11,724,036.23

Finding the Fourth Proportional to 21,513,791.81, 29,688,278.60 and 11,724,036.23

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Solution

The fourth proportional to 21,513,791.81, 29,688,278.60 and 11,724,036.23 is: 16,178,759.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,513,791.81 : 29,688,278.60 = 11,724,036.23 : x
  2. Step 2: Convert to fraction form
    21,513,791.81/29,688,278.60 = 11,724,036.23/x
  3. Step 3: Cross multiply
    21,513,791.81x = 29,688,278.60 × 11,724,036.23
  4. Step 4: Simplify right side
    21,513,791.81x = 348,066,454,016,264.44
  5. Step 5: Solve for x
    x = 348,066,454,016,264.44/21,513,791.81
  6. Step 6: Final answer
    x = 16,178,759.05

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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.