Home / 199,657,579.12-299,492,469.80-68,498,014.74

Finding the Fourth Proportional to 199,657,579.12, 299,492,469.80 and 68,498,014.74

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Solution

The fourth proportional to 199,657,579.12, 299,492,469.80 and 68,498,014.74 is: 102,749,115.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,657,579.12 : 299,492,469.80 = 68,498,014.74 : x
  2. Step 2: Convert to fraction form
    199,657,579.12/299,492,469.80 = 68,498,014.74/x
  3. Step 3: Cross multiply
    199,657,579.12x = 299,492,469.80 × 68,498,014.74
  4. Step 4: Simplify right side
    199,657,579.12x = 20,514,639,609,670,684
  5. Step 5: Solve for x
    x = 20,514,639,609,670,684/199,657,579.12
  6. Step 6: Final answer
    x = 102,749,115.26

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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.