Home / 70,489,178.88-105,733,621.86-39,769,812.84

Finding the Fourth Proportional to 70,489,178.88, 105,733,621.86 and 39,769,812.84

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Solution

The fourth proportional to 70,489,178.88, 105,733,621.86 and 39,769,812.84 is: 59,654,636.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,489,178.88 : 105,733,621.86 = 39,769,812.84 : x
  2. Step 2: Convert to fraction form
    70,489,178.88/105,733,621.86 = 39,769,812.84/x
  3. Step 3: Cross multiply
    70,489,178.88x = 105,733,621.86 × 39,769,812.84
  4. Step 4: Simplify right side
    70,489,178.88x = 4,205,006,352,514,897
  5. Step 5: Solve for x
    x = 4,205,006,352,514,897/70,489,178.88
  6. Step 6: Final answer
    x = 59,654,636.63

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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.