Home / 855,766,868.20-1,283,650,302.30-209,534,612.20

Finding the Fourth Proportional to 855,766,868.20, 1,283,650,302.30 and 209,534,612.20

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Solution

The fourth proportional to 855,766,868.20, 1,283,650,302.30 and 209,534,612.20 is: 314,301,918.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    855,766,868.20 : 1,283,650,302.30 = 209,534,612.20 : x
  2. Step 2: Convert to fraction form
    855,766,868.20/1,283,650,302.30 = 209,534,612.20/x
  3. Step 3: Cross multiply
    855,766,868.20x = 1,283,650,302.30 × 209,534,612.20
  4. Step 4: Simplify right side
    855,766,868.20x = 268,969,168,292,843,232
  5. Step 5: Solve for x
    x = 268,969,168,292,843,232/855,766,868.20
  6. Step 6: Final answer
    x = 314,301,918.30

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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.