Home / 45,117,498.96-67,668,248.58-20,519,664.05

Finding the Fourth Proportional to 45,117,498.96, 67,668,248.58 and 20,519,664.05

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Solution

The fourth proportional to 45,117,498.96, 67,668,248.58 and 20,519,664.05 is: 30,775,857.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,117,498.96 : 67,668,248.58 = 20,519,664.05 : x
  2. Step 2: Convert to fraction form
    45,117,498.96/67,668,248.58 = 20,519,664.05/x
  3. Step 3: Cross multiply
    45,117,498.96x = 67,668,248.58 × 20,519,664.05
  4. Step 4: Simplify right side
    45,117,498.96x = 1,388,529,727,805,711.25
  5. Step 5: Solve for x
    x = 1,388,529,727,805,711.25/45,117,498.96
  6. Step 6: Final answer
    x = 30,775,857.70

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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.