Home / 31,941,078.84-47,911,596.12-7,679,997.72

Finding the Fourth Proportional to 31,941,078.84, 47,911,596.12 and 7,679,997.72

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Solution

The fourth proportional to 31,941,078.84, 47,911,596.12 and 7,679,997.72 is: 11,519,991.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,941,078.84 : 47,911,596.12 = 7,679,997.72 : x
  2. Step 2: Convert to fraction form
    31,941,078.84/47,911,596.12 = 7,679,997.72/x
  3. Step 3: Cross multiply
    31,941,078.84x = 47,911,596.12 × 7,679,997.72
  4. Step 4: Simplify right side
    31,941,078.84x = 367,960,948,963,160.81
  5. Step 5: Solve for x
    x = 367,960,948,963,160.81/31,941,078.84
  6. Step 6: Final answer
    x = 11,519,991.26

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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.