Home / 142,137,103.78-213,205,655.74-51,260,692.78

Finding the Fourth Proportional to 142,137,103.78, 213,205,655.74 and 51,260,692.78

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Solution

The fourth proportional to 142,137,103.78, 213,205,655.74 and 51,260,692.78 is: 76,891,039.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,137,103.78 : 213,205,655.74 = 51,260,692.78 : x
  2. Step 2: Convert to fraction form
    142,137,103.78/213,205,655.74 = 51,260,692.78/x
  3. Step 3: Cross multiply
    142,137,103.78x = 213,205,655.74 × 51,260,692.78
  4. Step 4: Simplify right side
    142,137,103.78x = 10,929,069,617,846,584
  5. Step 5: Solve for x
    x = 10,929,069,617,846,584/142,137,103.78
  6. Step 6: Final answer
    x = 76,891,039.20

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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.