Home / 949,388,664.60-1,424,082,996.90-639,452,273.40

Finding the Fourth Proportional to 949,388,664.60, 1,424,082,996.90 and 639,452,273.40

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Solution

The fourth proportional to 949,388,664.60, 1,424,082,996.90 and 639,452,273.40 is: 959,178,410.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    949,388,664.60 : 1,424,082,996.90 = 639,452,273.40 : x
  2. Step 2: Convert to fraction form
    949,388,664.60/1,424,082,996.90 = 639,452,273.40/x
  3. Step 3: Cross multiply
    949,388,664.60x = 1,424,082,996.90 × 639,452,273.40
  4. Step 4: Simplify right side
    949,388,664.60x = 910,633,109,877,990,144
  5. Step 5: Solve for x
    x = 910,633,109,877,990,144/949,388,664.60
  6. Step 6: Final answer
    x = 959,178,410.10

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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.