Home / 393,066,658.56-589,578,720-120,438,215.04

Finding the Fourth Proportional to 393,066,658.56, 589,578,720 and 120,438,215.04

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Solution

The fourth proportional to 393,066,658.56, 589,578,720 and 120,438,215.04 is: 180,650,805.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,066,658.56 : 589,578,720 = 120,438,215.04 : x
  2. Step 2: Convert to fraction form
    393,066,658.56/589,578,720 = 120,438,215.04/x
  3. Step 3: Cross multiply
    393,066,658.56x = 589,578,720 × 120,438,215.04
  4. Step 4: Simplify right side
    393,066,658.56x = 71,007,808,662,367,952
  5. Step 5: Solve for x
    x = 71,007,808,662,367,952/393,066,658.56
  6. Step 6: Final answer
    x = 180,650,805.95

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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.