Home / 1,109,796,938.64-1,531,519,242.96-663,760,294.20

Finding the Fourth Proportional to 1,109,796,938.64, 1,531,519,242.96 and 663,760,294.20

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Solution

The fourth proportional to 1,109,796,938.64, 1,531,519,242.96 and 663,760,294.20 is: 915,988,887.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,109,796,938.64 : 1,531,519,242.96 = 663,760,294.20 : x
  2. Step 2: Convert to fraction form
    1,109,796,938.64/1,531,519,242.96 = 663,760,294.20/x
  3. Step 3: Cross multiply
    1,109,796,938.64x = 1,531,519,242.96 × 663,760,294.20
  4. Step 4: Simplify right side
    1,109,796,938.64x = 1,016,561,663,280,091,008
  5. Step 5: Solve for x
    x = 1,016,561,663,280,091,008/1,109,796,938.64
  6. Step 6: Final answer
    x = 915,988,887.59

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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.