Home / 21,261,431.44-29,331,571.40-13,001,854.80

Finding the Fourth Proportional to 21,261,431.44, 29,331,571.40 and 13,001,854.80

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Solution

The fourth proportional to 21,261,431.44, 29,331,571.40 and 13,001,854.80 is: 17,936,931.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,261,431.44 : 29,331,571.40 = 13,001,854.80 : x
  2. Step 2: Convert to fraction form
    21,261,431.44/29,331,571.40 = 13,001,854.80/x
  3. Step 3: Cross multiply
    21,261,431.44x = 29,331,571.40 × 13,001,854.80
  4. Step 4: Simplify right side
    21,261,431.44x = 381,364,832,398,632.75
  5. Step 5: Solve for x
    x = 381,364,832,398,632.75/21,261,431.44
  6. Step 6: Final answer
    x = 17,936,931.17

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1.5x scale

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.