Home / 684,962,935.78-945,248,851.43-371,697,149.75

Finding the Fourth Proportional to 684,962,935.78, 945,248,851.43 and 371,697,149.75

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Solution

The fourth proportional to 684,962,935.78, 945,248,851.43 and 371,697,149.75 is: 512,942,066.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,962,935.78 : 945,248,851.43 = 371,697,149.75 : x
  2. Step 2: Convert to fraction form
    684,962,935.78/945,248,851.43 = 371,697,149.75/x
  3. Step 3: Cross multiply
    684,962,935.78x = 945,248,851.43 × 371,697,149.75
  4. Step 4: Simplify right side
    684,962,935.78x = 351,346,303,882,171,328
  5. Step 5: Solve for x
    x = 351,346,303,882,171,328/684,962,935.78
  6. Step 6: Final answer
    x = 512,942,066.69

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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.