Home / 261,995,076.72-393,039,674.46-89,431,533

Finding the Fourth Proportional to 261,995,076.72, 393,039,674.46 and 89,431,533

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Solution

The fourth proportional to 261,995,076.72, 393,039,674.46 and 89,431,533 is: 134,163,363.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,995,076.72 : 393,039,674.46 = 89,431,533 : x
  2. Step 2: Convert to fraction form
    261,995,076.72/393,039,674.46 = 89,431,533/x
  3. Step 3: Cross multiply
    261,995,076.72x = 393,039,674.46 × 89,431,533
  4. Step 4: Simplify right side
    261,995,076.72x = 35,150,140,616,778,744
  5. Step 5: Solve for x
    x = 35,150,140,616,778,744/261,995,076.72
  6. Step 6: Final answer
    x = 134,163,363.13

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.