Home / 8,286,038,265.78-12,436,915,221.34-5,128,702,214.82

Finding the Fourth Proportional to 8,286,038,265.78, 12,436,915,221.34 and 5,128,702,214.82

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Solution

The fourth proportional to 8,286,038,265.78, 12,436,915,221.34 and 5,128,702,214.82 is: 7,697,916,977.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,286,038,265.78 : 12,436,915,221.34 = 5,128,702,214.82 : x
  2. Step 2: Convert to fraction form
    8,286,038,265.78/12,436,915,221.34 = 5,128,702,214.82/x
  3. Step 3: Cross multiply
    8,286,038,265.78x = 12,436,915,221.34 × 5,128,702,214.82
  4. Step 4: Simplify right side
    8,286,038,265.78x = 63,785,234,641,215,029,248
  5. Step 5: Solve for x
    x = 63,785,234,641,215,029,248/8,286,038,265.78
  6. Step 6: Final answer
    x = 7,697,916,977.36

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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.