Home / 1,299,084,812.40-1,948,627,218.60-885,836,290.80

Finding the Fourth Proportional to 1,299,084,812.40, 1,948,627,218.60 and 885,836,290.80

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Solution

The fourth proportional to 1,299,084,812.40, 1,948,627,218.60 and 885,836,290.80 is: 1,328,754,436.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,299,084,812.40 : 1,948,627,218.60 = 885,836,290.80 : x
  2. Step 2: Convert to fraction form
    1,299,084,812.40/1,948,627,218.60 = 885,836,290.80/x
  3. Step 3: Cross multiply
    1,299,084,812.40x = 1,948,627,218.60 × 885,836,290.80
  4. Step 4: Simplify right side
    1,299,084,812.40x = 1,726,164,707,476,544,512
  5. Step 5: Solve for x
    x = 1,726,164,707,476,544,512/1,299,084,812.40
  6. Step 6: Final answer
    x = 1,328,754,436.20

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Double scale
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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.