Home / 1,818,936,007.10-2,728,404,010.65-992,438,963.90

Finding the Fourth Proportional to 1,818,936,007.10, 2,728,404,010.65 and 992,438,963.90

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Solution

The fourth proportional to 1,818,936,007.10, 2,728,404,010.65 and 992,438,963.90 is: 1,488,658,445.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,818,936,007.10 : 2,728,404,010.65 = 992,438,963.90 : x
  2. Step 2: Convert to fraction form
    1,818,936,007.10/2,728,404,010.65 = 992,438,963.90/x
  3. Step 3: Cross multiply
    1,818,936,007.10x = 2,728,404,010.65 × 992,438,963.90
  4. Step 4: Simplify right side
    1,818,936,007.10x = 2,707,774,449,430,090,752
  5. Step 5: Solve for x
    x = 2,707,774,449,430,090,752/1,818,936,007.10
  6. Step 6: Final answer
    x = 1,488,658,445.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.