Home / 287,021,658,761.37-396,090,048,008.57-155,034,007,610.48

Finding the Fourth Proportional to 287,021,658,761.37, 396,090,048,008.57 and 155,034,007,610.48

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Solution

The fourth proportional to 287,021,658,761.37, 396,090,048,008.57 and 155,034,007,610.48 is: 213,947,016,341.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,021,658,761.37 : 396,090,048,008.57 = 155,034,007,610.48 : x
  2. Step 2: Convert to fraction form
    287,021,658,761.37/396,090,048,008.57 = 155,034,007,610.48/x
  3. Step 3: Cross multiply
    287,021,658,761.37x = 396,090,048,008.57 × 155,034,007,610.48
  4. Step 4: Simplify right side
    287,021,658,761.37x = 61,407,427,517,396,033,732,608
  5. Step 5: Solve for x
    x = 61,407,427,517,396,033,732,608/287,021,658,761.37
  6. Step 6: Final answer
    x = 213,947,016,341.55

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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.