Home / 345,771,571.42-518,693,689.19-112,620,438.79

Finding the Fourth Proportional to 345,771,571.42, 518,693,689.19 and 112,620,438.79

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Solution

The fourth proportional to 345,771,571.42, 518,693,689.19 and 112,620,438.79 is: 168,942,491.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,771,571.42 : 518,693,689.19 = 112,620,438.79 : x
  2. Step 2: Convert to fraction form
    345,771,571.42/518,693,689.19 = 112,620,438.79/x
  3. Step 3: Cross multiply
    345,771,571.42x = 518,693,689.19 × 112,620,438.79
  4. Step 4: Simplify right side
    345,771,571.42x = 58,415,510,875,355,384
  5. Step 5: Solve for x
    x = 58,415,510,875,355,384/345,771,571.42
  6. Step 6: Final answer
    x = 168,942,491.82

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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.