Home / 2,179,272,781.60-3,007,460,243.28-1,189,262,010.40

Finding the Fourth Proportional to 2,179,272,781.60, 3,007,460,243.28 and 1,189,262,010.40

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Solution

The fourth proportional to 2,179,272,781.60, 3,007,460,243.28 and 1,189,262,010.40 is: 1,641,216,393.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,179,272,781.60 : 3,007,460,243.28 = 1,189,262,010.40 : x
  2. Step 2: Convert to fraction form
    2,179,272,781.60/3,007,460,243.28 = 1,189,262,010.40/x
  3. Step 3: Cross multiply
    2,179,272,781.60x = 3,007,460,243.28 × 1,189,262,010.40
  4. Step 4: Simplify right side
    2,179,272,781.60x = 3,576,658,215,121,246,208
  5. Step 5: Solve for x
    x = 3,576,658,215,121,246,208/2,179,272,781.60
  6. Step 6: Final answer
    x = 1,641,216,393.52

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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.