Home / 989,066,981.58-1,364,915,120.44-543,059,233.26

Finding the Fourth Proportional to 989,066,981.58, 1,364,915,120.44 and 543,059,233.26

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Solution

The fourth proportional to 989,066,981.58, 1,364,915,120.44 and 543,059,233.26 is: 749,423,216.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,066,981.58 : 1,364,915,120.44 = 543,059,233.26 : x
  2. Step 2: Convert to fraction form
    989,066,981.58/1,364,915,120.44 = 543,059,233.26/x
  3. Step 3: Cross multiply
    989,066,981.58x = 1,364,915,120.44 × 543,059,233.26
  4. Step 4: Simplify right side
    989,066,981.58x = 741,229,758,771,126,912
  5. Step 5: Solve for x
    x = 741,229,758,771,126,912/989,066,981.58
  6. Step 6: Final answer
    x = 749,423,216.60

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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.