Home / 1,142,656,691.36-1,576,883,511.60-640,976,683.04

Finding the Fourth Proportional to 1,142,656,691.36, 1,576,883,511.60 and 640,976,683.04

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Solution

The fourth proportional to 1,142,656,691.36, 1,576,883,511.60 and 640,976,683.04 is: 884,557,514.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,142,656,691.36 : 1,576,883,511.60 = 640,976,683.04 : x
  2. Step 2: Convert to fraction form
    1,142,656,691.36/1,576,883,511.60 = 640,976,683.04/x
  3. Step 3: Cross multiply
    1,142,656,691.36x = 1,576,883,511.60 × 640,976,683.04
  4. Step 4: Simplify right side
    1,142,656,691.36x = 1,010,745,562,805,835,264
  5. Step 5: Solve for x
    x = 1,010,745,562,805,835,264/1,142,656,691.36
  6. Step 6: Final answer
    x = 884,557,514.47

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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.