Home / 28,074,262.86-42,105,028.04-12,711,410.72

Finding the Fourth Proportional to 28,074,262.86, 42,105,028.04 and 12,711,410.72

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Solution

The fourth proportional to 28,074,262.86, 42,105,028.04 and 12,711,410.72 is: 19,064,233.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,074,262.86 : 42,105,028.04 = 12,711,410.72 : x
  2. Step 2: Convert to fraction form
    28,074,262.86/42,105,028.04 = 12,711,410.72/x
  3. Step 3: Cross multiply
    28,074,262.86x = 42,105,028.04 × 12,711,410.72
  4. Step 4: Simplify right side
    28,074,262.86x = 535,214,304,914,979.19
  5. Step 5: Solve for x
    x = 535,214,304,914,979.19/28,074,262.86
  6. Step 6: Final answer
    x = 19,064,233.58

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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.