Home / 523,302,220.56-722,172,468.78-288,368,014.68

Finding the Fourth Proportional to 523,302,220.56, 722,172,468.78 and 288,368,014.68

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Solution

The fourth proportional to 523,302,220.56, 722,172,468.78 and 288,368,014.68 is: 397,956,348.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    523,302,220.56 : 722,172,468.78 = 288,368,014.68 : x
  2. Step 2: Convert to fraction form
    523,302,220.56/722,172,468.78 = 288,368,014.68/x
  3. Step 3: Cross multiply
    523,302,220.56x = 722,172,468.78 × 288,368,014.68
  4. Step 4: Simplify right side
    523,302,220.56x = 208,251,441,078,642,880
  5. Step 5: Solve for x
    x = 208,251,441,078,642,880/523,302,220.56
  6. Step 6: Final answer
    x = 397,956,348.93

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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.