Home / 28,364,302.12-39,143,781.00-15,806,485.25

Finding the Fourth Proportional to 28,364,302.12, 39,143,781.00 and 15,806,485.25

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Solution

The fourth proportional to 28,364,302.12, 39,143,781.00 and 15,806,485.25 is: 21,813,531.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,364,302.12 : 39,143,781.00 = 15,806,485.25 : x
  2. Step 2: Convert to fraction form
    28,364,302.12/39,143,781.00 = 15,806,485.25/x
  3. Step 3: Cross multiply
    28,364,302.12x = 39,143,781.00 × 15,806,485.25
  4. Step 4: Simplify right side
    28,364,302.12x = 618,725,596,730,978.88
  5. Step 5: Solve for x
    x = 618,725,596,730,978.88/28,364,302.12
  6. Step 6: Final answer
    x = 21,813,531.47

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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.