Home / 284,523,620.16-392,642,994.24-154,143,428.16

Finding the Fourth Proportional to 284,523,620.16, 392,642,994.24 and 154,143,428.16

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Solution

The fourth proportional to 284,523,620.16, 392,642,994.24 and 154,143,428.16 is: 212,718,146.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,523,620.16 : 392,642,994.24 = 154,143,428.16 : x
  2. Step 2: Convert to fraction form
    284,523,620.16/392,642,994.24 = 154,143,428.16/x
  3. Step 3: Cross multiply
    284,523,620.16x = 392,642,994.24 × 154,143,428.16
  4. Step 4: Simplify right side
    284,523,620.16x = 60,523,337,175,160,736
  5. Step 5: Solve for x
    x = 60,523,337,175,160,736/284,523,620.16
  6. Step 6: Final answer
    x = 212,718,146.71

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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.