Home / 739,743,918.86-1,020,863,103.45-422,197,795.58

Finding the Fourth Proportional to 739,743,918.86, 1,020,863,103.45 and 422,197,795.58

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Solution

The fourth proportional to 739,743,918.86, 1,020,863,103.45 and 422,197,795.58 is: 582,642,372.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,743,918.86 : 1,020,863,103.45 = 422,197,795.58 : x
  2. Step 2: Convert to fraction form
    739,743,918.86/1,020,863,103.45 = 422,197,795.58/x
  3. Step 3: Cross multiply
    739,743,918.86x = 1,020,863,103.45 × 422,197,795.58
  4. Step 4: Simplify right side
    739,743,918.86x = 431,006,151,865,547,520
  5. Step 5: Solve for x
    x = 431,006,151,865,547,520/739,743,918.86
  6. Step 6: Final answer
    x = 582,642,372.42

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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.