Home / 1,109,796,983.84-1,531,519,304.96-663,760,339.36

Finding the Fourth Proportional to 1,109,796,983.84, 1,531,519,304.96 and 663,760,339.36

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Solution

The fourth proportional to 1,109,796,983.84, 1,531,519,304.96 and 663,760,339.36 is: 915,988,949.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,109,796,983.84 : 1,531,519,304.96 = 663,760,339.36 : x
  2. Step 2: Convert to fraction form
    1,109,796,983.84/1,531,519,304.96 = 663,760,339.36/x
  3. Step 3: Cross multiply
    1,109,796,983.84x = 1,531,519,304.96 × 663,760,339.36
  4. Step 4: Simplify right side
    1,109,796,983.84x = 1,016,561,773,596,641,024
  5. Step 5: Solve for x
    x = 1,016,561,773,596,641,024/1,109,796,983.84
  6. Step 6: Final answer
    x = 915,988,949.69

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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.