Home / 989,066,975.58-1,364,915,112.15-543,059,227.26

Finding the Fourth Proportional to 989,066,975.58, 1,364,915,112.15 and 543,059,227.26

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Solution

The fourth proportional to 989,066,975.58, 1,364,915,112.15 and 543,059,227.26 is: 749,423,208.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,066,975.58 : 1,364,915,112.15 = 543,059,227.26 : x
  2. Step 2: Convert to fraction form
    989,066,975.58/1,364,915,112.15 = 543,059,227.26/x
  3. Step 3: Cross multiply
    989,066,975.58x = 1,364,915,112.15 × 543,059,227.26
  4. Step 4: Simplify right side
    989,066,975.58x = 741,229,746,079,675,264
  5. Step 5: Solve for x
    x = 741,229,746,079,675,264/989,066,975.58
  6. Step 6: Final answer
    x = 749,423,208.32

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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.