Home / 855,785,182.86-1,181,012,746.77-479,457,638.82

Finding the Fourth Proportional to 855,785,182.86, 1,181,012,746.77 and 479,457,638.82

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Solution

The fourth proportional to 855,785,182.86, 1,181,012,746.77 and 479,457,638.82 is: 661,667,897.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    855,785,182.86 : 1,181,012,746.77 = 479,457,638.82 : x
  2. Step 2: Convert to fraction form
    855,785,182.86/1,181,012,746.77 = 479,457,638.82/x
  3. Step 3: Cross multiply
    855,785,182.86x = 1,181,012,746.77 × 479,457,638.82
  4. Step 4: Simplify right side
    855,785,182.86x = 566,245,582,982,666,752
  5. Step 5: Solve for x
    x = 566,245,582,982,666,752/855,785,182.86
  6. Step 6: Final answer
    x = 661,667,897.88

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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.