Home / 892,107,943.43-1,231,036,785.18-515,788,675.64

Finding the Fourth Proportional to 892,107,943.43, 1,231,036,785.18 and 515,788,675.64

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Solution

The fourth proportional to 892,107,943.43, 1,231,036,785.18 and 515,788,675.64 is: 711,746,642.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    892,107,943.43 : 1,231,036,785.18 = 515,788,675.64 : x
  2. Step 2: Convert to fraction form
    892,107,943.43/1,231,036,785.18 = 515,788,675.64/x
  3. Step 3: Cross multiply
    892,107,943.43x = 1,231,036,785.18 × 515,788,675.64
  4. Step 4: Simplify right side
    892,107,943.43x = 634,954,833,090,588,928
  5. Step 5: Solve for x
    x = 634,954,833,090,588,928/892,107,943.43
  6. Step 6: Final answer
    x = 711,746,642.06

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Double scale
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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.