Home / 8,333,941.82-12,563,377.20-7,778,419.96

Finding the Fourth Proportional to 8,333,941.82, 12,563,377.20 and 7,778,419.96

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Solution

The fourth proportional to 8,333,941.82, 12,563,377.20 and 7,778,419.96 is: 11,725,930.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,333,941.82 : 12,563,377.20 = 7,778,419.96 : x
  2. Step 2: Convert to fraction form
    8,333,941.82/12,563,377.20 = 7,778,419.96/x
  3. Step 3: Cross multiply
    8,333,941.82x = 12,563,377.20 × 7,778,419.96
  4. Step 4: Simplify right side
    8,333,941.82x = 97,723,223,977,488.91
  5. Step 5: Solve for x
    x = 97,723,223,977,488.91/8,333,941.82
  6. Step 6: Final answer
    x = 11,725,930.67

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.