Home / 989,066,962-1,364,915,093.28-543,059,213.68

Finding the Fourth Proportional to 989,066,962, 1,364,915,093.28 and 543,059,213.68

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Solution

The fourth proportional to 989,066,962, 1,364,915,093.28 and 543,059,213.68 is: 749,423,189.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,066,962 : 1,364,915,093.28 = 543,059,213.68 : x
  2. Step 2: Convert to fraction form
    989,066,962/1,364,915,093.28 = 543,059,213.68/x
  3. Step 3: Cross multiply
    989,066,962x = 1,364,915,093.28 × 543,059,213.68
  4. Step 4: Simplify right side
    989,066,962x = 741,229,717,296,600,576
  5. Step 5: Solve for x
    x = 741,229,717,296,600,576/989,066,962
  6. Step 6: Final answer
    x = 749,423,189.51

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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.