Home / 12,953,998.20-19,430,997.30-3,977,383.80

Finding the Fourth Proportional to 12,953,998.20, 19,430,997.30 and 3,977,383.80

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Solution

The fourth proportional to 12,953,998.20, 19,430,997.30 and 3,977,383.80 is: 5,966,075.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,953,998.20 : 19,430,997.30 = 3,977,383.80 : x
  2. Step 2: Convert to fraction form
    12,953,998.20/19,430,997.30 = 3,977,383.80/x
  3. Step 3: Cross multiply
    12,953,998.20x = 19,430,997.30 × 3,977,383.80
  4. Step 4: Simplify right side
    12,953,998.20x = 77,284,533,878,863.73
  5. Step 5: Solve for x
    x = 77,284,533,878,863.73/12,953,998.20
  6. Step 6: Final answer
    x = 5,966,075.70

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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.