Home / 84,725,807.78-127,030,692.60-43,146,197.68

Finding the Fourth Proportional to 84,725,807.78, 127,030,692.60 and 43,146,197.68

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Solution

The fourth proportional to 84,725,807.78, 127,030,692.60 and 43,146,197.68 is: 64,689,750.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,725,807.78 : 127,030,692.60 = 43,146,197.68 : x
  2. Step 2: Convert to fraction form
    84,725,807.78/127,030,692.60 = 43,146,197.68/x
  3. Step 3: Cross multiply
    84,725,807.78x = 127,030,692.60 × 43,146,197.68
  4. Step 4: Simplify right side
    84,725,807.78x = 5,480,891,374,346,913
  5. Step 5: Solve for x
    x = 5,480,891,374,346,913/84,725,807.78
  6. Step 6: Final answer
    x = 64,689,750.60

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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.