Home / 71,126,341.93-106,704,742.04-21,275,078.54

Finding the Fourth Proportional to 71,126,341.93, 106,704,742.04 and 21,275,078.54

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Solution

The fourth proportional to 71,126,341.93, 106,704,742.04 and 21,275,078.54 is: 31,917,173.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,126,341.93 : 106,704,742.04 = 21,275,078.54 : x
  2. Step 2: Convert to fraction form
    71,126,341.93/106,704,742.04 = 21,275,078.54/x
  3. Step 3: Cross multiply
    71,126,341.93x = 106,704,742.04 × 21,275,078.54
  4. Step 4: Simplify right side
    71,126,341.93x = 2,270,151,767,811,389.50
  5. Step 5: Solve for x
    x = 2,270,151,767,811,389.50/71,126,341.93
  6. Step 6: Final answer
    x = 31,917,173.11

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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.