Home / 1,028,166,111.12-1,418,869,233.35-588,132,963.12

Finding the Fourth Proportional to 1,028,166,111.12, 1,418,869,233.35 and 588,132,963.12

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Solution

The fourth proportional to 1,028,166,111.12, 1,418,869,233.35 and 588,132,963.12 is: 811,623,489.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,028,166,111.12 : 1,418,869,233.35 = 588,132,963.12 : x
  2. Step 2: Convert to fraction form
    1,028,166,111.12/1,418,869,233.35 = 588,132,963.12/x
  3. Step 3: Cross multiply
    1,028,166,111.12x = 1,418,869,233.35 × 588,132,963.12
  4. Step 4: Simplify right side
    1,028,166,111.12x = 834,483,766,489,938,176
  5. Step 5: Solve for x
    x = 834,483,766,489,938,176/1,028,166,111.12
  6. Step 6: Final answer
    x = 811,623,489.11

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Double scale
Find fourth proportional to 1,028,166,112.12, 1,418,869,234.73 and 588,132,964.12
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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.