Home / 21,038,969.65-29,032,558.22-11,747,128.01

Finding the Fourth Proportional to 21,038,969.65, 29,032,558.22 and 11,747,128.01

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Solution

The fourth proportional to 21,038,969.65, 29,032,558.22 and 11,747,128.01 is: 16,210,355.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,038,969.65 : 29,032,558.22 = 11,747,128.01 : x
  2. Step 2: Convert to fraction form
    21,038,969.65/29,032,558.22 = 11,747,128.01/x
  3. Step 3: Cross multiply
    21,038,969.65x = 29,032,558.22 × 11,747,128.01
  4. Step 4: Simplify right side
    21,038,969.65x = 341,049,177,970,066.94
  5. Step 5: Solve for x
    x = 341,049,177,970,066.94/21,038,969.65
  6. Step 6: Final answer
    x = 16,210,355.53

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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.