Home / 76,387,902.72-114,580,727.04-18,880,179.84

Finding the Fourth Proportional to 76,387,902.72, 114,580,727.04 and 18,880,179.84

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Solution

The fourth proportional to 76,387,902.72, 114,580,727.04 and 18,880,179.84 is: 28,319,991.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,387,902.72 : 114,580,727.04 = 18,880,179.84 : x
  2. Step 2: Convert to fraction form
    76,387,902.72/114,580,727.04 = 18,880,179.84/x
  3. Step 3: Cross multiply
    76,387,902.72x = 114,580,727.04 × 18,880,179.84
  4. Step 4: Simplify right side
    76,387,902.72x = 2,163,304,732,713,151
  5. Step 5: Solve for x
    x = 2,163,304,732,713,151/76,387,902.72
  6. Step 6: Final answer
    x = 28,319,991.20

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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.