Home / 42,637,893.78-63,942,519.09-13,877,265.54

Finding the Fourth Proportional to 42,637,893.78, 63,942,519.09 and 13,877,265.54

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Solution

The fourth proportional to 42,637,893.78, 63,942,519.09 and 13,877,265.54 is: 20,811,237.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,637,893.78 : 63,942,519.09 = 13,877,265.54 : x
  2. Step 2: Convert to fraction form
    42,637,893.78/63,942,519.09 = 13,877,265.54/x
  3. Step 3: Cross multiply
    42,637,893.78x = 63,942,519.09 × 13,877,265.54
  4. Step 4: Simplify right side
    42,637,893.78x = 887,347,316,708,449.12
  5. Step 5: Solve for x
    x = 887,347,316,708,449.12/42,637,893.78
  6. Step 6: Final answer
    x = 20,811,237.10

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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.