Home / 8,285,932,876.78-12,436,757,070.01-5,128,596,858.24

Finding the Fourth Proportional to 8,285,932,876.78, 12,436,757,070.01 and 5,128,596,858.24

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Solution

The fourth proportional to 8,285,932,876.78, 12,436,757,070.01 and 5,128,596,858.24 is: 7,697,758,862.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,285,932,876.78 : 12,436,757,070.01 = 5,128,596,858.24 : x
  2. Step 2: Convert to fraction form
    8,285,932,876.78/12,436,757,070.01 = 5,128,596,858.24/x
  3. Step 3: Cross multiply
    8,285,932,876.78x = 12,436,757,070.01 × 5,128,596,858.24
  4. Step 4: Simplify right side
    8,285,932,876.78x = 63,783,113,235,901,685,760
  5. Step 5: Solve for x
    x = 63,783,113,235,901,685,760/8,285,932,876.78
  6. Step 6: Final answer
    x = 7,697,758,862.45

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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.