Home / 722,339,728.16-996,833,926.69-392,314,867.16

Finding the Fourth Proportional to 722,339,728.16, 996,833,926.69 and 392,314,867.16

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Solution

The fourth proportional to 722,339,728.16, 996,833,926.69 and 392,314,867.16 is: 541,397,287.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,339,728.16 : 996,833,926.69 = 392,314,867.16 : x
  2. Step 2: Convert to fraction form
    722,339,728.16/996,833,926.69 = 392,314,867.16/x
  3. Step 3: Cross multiply
    722,339,728.16x = 996,833,926.69 × 392,314,867.16
  4. Step 4: Simplify right side
    722,339,728.16x = 391,072,769,524,003,520
  5. Step 5: Solve for x
    x = 391,072,769,524,003,520/722,339,728.16
  6. Step 6: Final answer
    x = 541,397,287.57

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1.5x scale

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.