Home / 279,939,752.10-419,909,628.15-252,729,972.90

Finding the Fourth Proportional to 279,939,752.10, 419,909,628.15 and 252,729,972.90

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Solution

The fourth proportional to 279,939,752.10, 419,909,628.15 and 252,729,972.90 is: 379,094,959.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,939,752.10 : 419,909,628.15 = 252,729,972.90 : x
  2. Step 2: Convert to fraction form
    279,939,752.10/419,909,628.15 = 252,729,972.90/x
  3. Step 3: Cross multiply
    279,939,752.10x = 419,909,628.15 × 252,729,972.90
  4. Step 4: Simplify right side
    279,939,752.10x = 106,123,748,942,798,576
  5. Step 5: Solve for x
    x = 106,123,748,942,798,576/279,939,752.10
  6. Step 6: Final answer
    x = 379,094,959.35

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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.