Home / 84,259,069.90-126,388,604.85-76,196,913.10

Finding the Fourth Proportional to 84,259,069.90, 126,388,604.85 and 76,196,913.10

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Solution

The fourth proportional to 84,259,069.90, 126,388,604.85 and 76,196,913.10 is: 114,295,369.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,259,069.90 : 126,388,604.85 = 76,196,913.10 : x
  2. Step 2: Convert to fraction form
    84,259,069.90/126,388,604.85 = 76,196,913.10/x
  3. Step 3: Cross multiply
    84,259,069.90x = 126,388,604.85 × 76,196,913.10
  4. Step 4: Simplify right side
    84,259,069.90x = 9,630,421,540,585,688
  5. Step 5: Solve for x
    x = 9,630,421,540,585,688/84,259,069.90
  6. Step 6: Final answer
    x = 114,295,369.65

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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.