Home / 989,066,975.07-1,364,915,111.46-543,059,226.78

Finding the Fourth Proportional to 989,066,975.07, 1,364,915,111.46 and 543,059,226.78

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Solution

The fourth proportional to 989,066,975.07, 1,364,915,111.46 and 543,059,226.78 is: 749,423,207.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,066,975.07 : 1,364,915,111.46 = 543,059,226.78 : x
  2. Step 2: Convert to fraction form
    989,066,975.07/1,364,915,111.46 = 543,059,226.78/x
  3. Step 3: Cross multiply
    989,066,975.07x = 1,364,915,111.46 × 543,059,226.78
  4. Step 4: Simplify right side
    989,066,975.07x = 741,229,745,049,805,056
  5. Step 5: Solve for x
    x = 741,229,745,049,805,056/989,066,975.07
  6. Step 6: Final answer
    x = 749,423,207.66

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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.