Home / 1,997,491,918.40-2,995,494,664.80-687,026,139.20

Finding the Fourth Proportional to 1,997,491,918.40, 2,995,494,664.80 and 687,026,139.20

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Solution

The fourth proportional to 1,997,491,918.40, 2,995,494,664.80 and 687,026,139.20 is: 1,030,283,584.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,997,491,918.40 : 2,995,494,664.80 = 687,026,139.20 : x
  2. Step 2: Convert to fraction form
    1,997,491,918.40/2,995,494,664.80 = 687,026,139.20/x
  3. Step 3: Cross multiply
    1,997,491,918.40x = 2,995,494,664.80 × 687,026,139.20
  4. Step 4: Simplify right side
    1,997,491,918.40x = 2,057,983,134,551,742,464
  5. Step 5: Solve for x
    x = 2,057,983,134,551,742,464/1,997,491,918.40
  6. Step 6: Final answer
    x = 1,030,283,584.93

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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.