Home / 989,066,938.76-1,364,915,061.19-543,059,190.46

Finding the Fourth Proportional to 989,066,938.76, 1,364,915,061.19 and 543,059,190.46

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Solution

The fourth proportional to 989,066,938.76, 1,364,915,061.19 and 543,059,190.46 is: 749,423,157.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,066,938.76 : 1,364,915,061.19 = 543,059,190.46 : x
  2. Step 2: Convert to fraction form
    989,066,938.76/1,364,915,061.19 = 543,059,190.46/x
  3. Step 3: Cross multiply
    989,066,938.76x = 1,364,915,061.19 × 543,059,190.46
  4. Step 4: Simplify right side
    989,066,938.76x = 741,229,668,176,502,784
  5. Step 5: Solve for x
    x = 741,229,668,176,502,784/989,066,938.76
  6. Step 6: Final answer
    x = 749,423,157.45

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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.