Home / 28,256,943.78-42,323,619.02-20,034,662.58

Finding the Fourth Proportional to 28,256,943.78, 42,323,619.02 and 20,034,662.58

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Solution

The fourth proportional to 28,256,943.78, 42,323,619.02 and 20,034,662.58 is: 30,008,178.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,256,943.78 : 42,323,619.02 = 20,034,662.58 : x
  2. Step 2: Convert to fraction form
    28,256,943.78/42,323,619.02 = 20,034,662.58/x
  3. Step 3: Cross multiply
    28,256,943.78x = 42,323,619.02 × 20,034,662.58
  4. Step 4: Simplify right side
    28,256,943.78x = 847,939,426,230,170.25
  5. Step 5: Solve for x
    x = 847,939,426,230,170.25/28,256,943.78
  6. Step 6: Final answer
    x = 30,008,178.97

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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.