Home / 21,506,130.56-29,658,524.80-15,695,708.80

Finding the Fourth Proportional to 21,506,130.56, 29,658,524.80 and 15,695,708.80

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Solution

The fourth proportional to 21,506,130.56, 29,658,524.80 and 15,695,708.80 is: 21,645,528.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,506,130.56 : 29,658,524.80 = 15,695,708.80 : x
  2. Step 2: Convert to fraction form
    21,506,130.56/29,658,524.80 = 15,695,708.80/x
  3. Step 3: Cross multiply
    21,506,130.56x = 29,658,524.80 × 15,695,708.80
  4. Step 4: Simplify right side
    21,506,130.56x = 465,511,568,698,378.25
  5. Step 5: Solve for x
    x = 465,511,568,698,378.25/21,506,130.56
  6. Step 6: Final answer
    x = 21,645,528.81

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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.