Home / 66,422,721.20-99,634,081.80-28,071,489.20

Finding the Fourth Proportional to 66,422,721.20, 99,634,081.80 and 28,071,489.20

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Solution

The fourth proportional to 66,422,721.20, 99,634,081.80 and 28,071,489.20 is: 42,107,233.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,422,721.20 : 99,634,081.80 = 28,071,489.20 : x
  2. Step 2: Convert to fraction form
    66,422,721.20/99,634,081.80 = 28,071,489.20/x
  3. Step 3: Cross multiply
    66,422,721.20x = 99,634,081.80 × 28,071,489.20
  4. Step 4: Simplify right side
    66,422,721.20x = 2,796,877,051,200,616.50
  5. Step 5: Solve for x
    x = 2,796,877,051,200,616.50/66,422,721.20
  6. Step 6: Final answer
    x = 42,107,233.80

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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.