Home / 989,066,937.76-1,364,915,059.81-543,059,189.46

Finding the Fourth Proportional to 989,066,937.76, 1,364,915,059.81 and 543,059,189.46

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Solution

The fourth proportional to 989,066,937.76, 1,364,915,059.81 and 543,059,189.46 is: 749,423,156.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,066,937.76 : 1,364,915,059.81 = 543,059,189.46 : x
  2. Step 2: Convert to fraction form
    989,066,937.76/1,364,915,059.81 = 543,059,189.46/x
  3. Step 3: Cross multiply
    989,066,937.76x = 1,364,915,059.81 × 543,059,189.46
  4. Step 4: Simplify right side
    989,066,937.76x = 741,229,666,060,808,320
  5. Step 5: Solve for x
    x = 741,229,666,060,808,320/989,066,937.76
  6. Step 6: Final answer
    x = 749,423,156.07

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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.