Home / 1,267,869,383.41-1,901,934,390.42-438,821,672.53

Finding the Fourth Proportional to 1,267,869,383.41, 1,901,934,390.42 and 438,821,672.53

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Solution

The fourth proportional to 1,267,869,383.41, 1,901,934,390.42 and 438,821,672.53 is: 658,277,612.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,267,869,383.41 : 1,901,934,390.42 = 438,821,672.53 : x
  2. Step 2: Convert to fraction form
    1,267,869,383.41/1,901,934,390.42 = 438,821,672.53/x
  3. Step 3: Cross multiply
    1,267,869,383.41x = 1,901,934,390.42 × 438,821,672.53
  4. Step 4: Simplify right side
    1,267,869,383.41x = 834,610,030,246,430,336
  5. Step 5: Solve for x
    x = 834,610,030,246,430,336/1,267,869,383.41
  6. Step 6: Final answer
    x = 658,277,612.16

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Double scale
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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.