Home / 892,112,840.24-1,231,043,547.16-515,793,571.48

Finding the Fourth Proportional to 892,112,840.24, 1,231,043,547.16 and 515,793,571.48

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Solution

The fourth proportional to 892,112,840.24, 1,231,043,547.16 and 515,793,571.48 is: 711,753,400.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    892,112,840.24 : 1,231,043,547.16 = 515,793,571.48 : x
  2. Step 2: Convert to fraction form
    892,112,840.24/1,231,043,547.16 = 515,793,571.48/x
  3. Step 3: Cross multiply
    892,112,840.24x = 1,231,043,547.16 × 515,793,571.48
  4. Step 4: Simplify right side
    892,112,840.24x = 634,964,347,837,064,320
  5. Step 5: Solve for x
    x = 634,964,347,837,064,320/892,112,840.24
  6. Step 6: Final answer
    x = 711,753,400.69

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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.