Home / 1,618,274,904.36-2,231,988,804.16-1,392,594,272.20

Finding the Fourth Proportional to 1,618,274,904.36, 2,231,988,804.16 and 1,392,594,272.20

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Solution

The fourth proportional to 1,618,274,904.36, 2,231,988,804.16 and 1,392,594,272.20 is: 1,920,721,143.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,618,274,904.36 : 2,231,988,804.16 = 1,392,594,272.20 : x
  2. Step 2: Convert to fraction form
    1,618,274,904.36/2,231,988,804.16 = 1,392,594,272.20/x
  3. Step 3: Cross multiply
    1,618,274,904.36x = 2,231,988,804.16 × 1,392,594,272.20
  4. Step 4: Simplify right side
    1,618,274,904.36x = 3,108,254,824,287,743,488
  5. Step 5: Solve for x
    x = 3,108,254,824,287,743,488/1,618,274,904.36
  6. Step 6: Final answer
    x = 1,920,721,143.18

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Double scale
Find fourth proportional to 1,618,274,905.36, 2,231,988,805.54 and 1,392,594,273.20
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.