Home / 21,504,995.20-32,256,801.60-7,128,726.40

Finding the Fourth Proportional to 21,504,995.20, 32,256,801.60 and 7,128,726.40

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Solution

The fourth proportional to 21,504,995.20, 32,256,801.60 and 7,128,726.40 is: 10,692,860.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,504,995.20 : 32,256,801.60 = 7,128,726.40 : x
  2. Step 2: Convert to fraction form
    21,504,995.20/32,256,801.60 = 7,128,726.40/x
  3. Step 3: Cross multiply
    21,504,995.20x = 32,256,801.60 × 7,128,726.40
  4. Step 4: Simplify right side
    21,504,995.20x = 229,949,913,145,482.25
  5. Step 5: Solve for x
    x = 229,949,913,145,482.25/21,504,995.20
  6. Step 6: Final answer
    x = 10,692,860.47

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.