Home / 1,687,879,361.41-2,329,242,689.39-935,189,791.48

Finding the Fourth Proportional to 1,687,879,361.41, 2,329,242,689.39 and 935,189,791.48

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Solution

The fourth proportional to 1,687,879,361.41, 2,329,242,689.39 and 935,189,791.48 is: 1,290,544,830.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,687,879,361.41 : 2,329,242,689.39 = 935,189,791.48 : x
  2. Step 2: Convert to fraction form
    1,687,879,361.41/2,329,242,689.39 = 935,189,791.48/x
  3. Step 3: Cross multiply
    1,687,879,361.41x = 2,329,242,689.39 × 935,189,791.48
  4. Step 4: Simplify right side
    1,687,879,361.41x = 2,178,283,984,995,161,088
  5. Step 5: Solve for x
    x = 2,178,283,984,995,161,088/1,687,879,361.41
  6. Step 6: Final answer
    x = 1,290,544,830.87

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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.