Home / 739,743,931.86-1,020,863,121.39-422,197,808.58

Finding the Fourth Proportional to 739,743,931.86, 1,020,863,121.39 and 422,197,808.58

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Solution

The fourth proportional to 739,743,931.86, 1,020,863,121.39 and 422,197,808.58 is: 582,642,390.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,743,931.86 : 1,020,863,121.39 = 422,197,808.58 : x
  2. Step 2: Convert to fraction form
    739,743,931.86/1,020,863,121.39 = 422,197,808.58/x
  3. Step 3: Cross multiply
    739,743,931.86x = 1,020,863,121.39 × 422,197,808.58
  4. Step 4: Simplify right side
    739,743,931.86x = 431,006,172,710,996,480
  5. Step 5: Solve for x
    x = 431,006,172,710,996,480/739,743,931.86
  6. Step 6: Final answer
    x = 582,642,390.36

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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.