Home / 949,388,715.60-1,424,083,073.40-639,452,324.40

Finding the Fourth Proportional to 949,388,715.60, 1,424,083,073.40 and 639,452,324.40

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Solution

The fourth proportional to 949,388,715.60, 1,424,083,073.40 and 639,452,324.40 is: 959,178,486.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    949,388,715.60 : 1,424,083,073.40 = 639,452,324.40 : x
  2. Step 2: Convert to fraction form
    949,388,715.60/1,424,083,073.40 = 639,452,324.40/x
  3. Step 3: Cross multiply
    949,388,715.60x = 1,424,083,073.40 × 639,452,324.40
  4. Step 4: Simplify right side
    949,388,715.60x = 910,633,231,424,325,888
  5. Step 5: Solve for x
    x = 910,633,231,424,325,888/949,388,715.60
  6. Step 6: Final answer
    x = 959,178,486.60

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Double scale
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Similar ratio
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1.5x scale

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.