Home / 391,631,186.54-541,226,144.95-320,955,346.18

Finding the Fourth Proportional to 391,631,186.54, 541,226,144.95 and 320,955,346.18

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Solution

The fourth proportional to 391,631,186.54, 541,226,144.95 and 320,955,346.18 is: 443,553,605.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,631,186.54 : 541,226,144.95 = 320,955,346.18 : x
  2. Step 2: Convert to fraction form
    391,631,186.54/541,226,144.95 = 320,955,346.18/x
  3. Step 3: Cross multiply
    391,631,186.54x = 541,226,144.95 × 320,955,346.18
  4. Step 4: Simplify right side
    391,631,186.54x = 173,709,424,714,094,112
  5. Step 5: Solve for x
    x = 173,709,424,714,094,112/391,631,186.54
  6. Step 6: Final answer
    x = 443,553,605.24

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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.