Home / 657,970,160.04-907,967,670.30-393,797,706.12

Finding the Fourth Proportional to 657,970,160.04, 907,967,670.30 and 393,797,706.12

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Solution

The fourth proportional to 657,970,160.04, 907,967,670.30 and 393,797,706.12 is: 543,422,190.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,970,160.04 : 907,967,670.30 = 393,797,706.12 : x
  2. Step 2: Convert to fraction form
    657,970,160.04/907,967,670.30 = 393,797,706.12/x
  3. Step 3: Cross multiply
    657,970,160.04x = 907,967,670.30 × 393,797,706.12
  4. Step 4: Simplify right side
    657,970,160.04x = 357,555,585,795,260,416
  5. Step 5: Solve for x
    x = 357,555,585,795,260,416/657,970,160.04
  6. Step 6: Final answer
    x = 543,422,190.72

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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.