Home / 251,631,471.78-347,240,261.61-140,128,064.10

Finding the Fourth Proportional to 251,631,471.78, 347,240,261.61 and 140,128,064.10

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Solution

The fourth proportional to 251,631,471.78, 347,240,261.61 and 140,128,064.10 is: 193,370,508.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,631,471.78 : 347,240,261.61 = 140,128,064.10 : x
  2. Step 2: Convert to fraction form
    251,631,471.78/347,240,261.61 = 140,128,064.10/x
  3. Step 3: Cross multiply
    251,631,471.78x = 347,240,261.61 × 140,128,064.10
  4. Step 4: Simplify right side
    251,631,471.78x = 48,658,105,636,986,848
  5. Step 5: Solve for x
    x = 48,658,105,636,986,848/251,631,471.78
  6. Step 6: Final answer
    x = 193,370,508.44

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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.