Home / 40,425,745.60-60,641,242.80-21,293,869.60

Finding the Fourth Proportional to 40,425,745.60, 60,641,242.80 and 21,293,869.60

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Solution

The fourth proportional to 40,425,745.60, 60,641,242.80 and 21,293,869.60 is: 31,942,186.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,425,745.60 : 60,641,242.80 = 21,293,869.60 : x
  2. Step 2: Convert to fraction form
    40,425,745.60/60,641,242.80 = 21,293,869.60/x
  3. Step 3: Cross multiply
    40,425,745.60x = 60,641,242.80 × 21,293,869.60
  4. Step 4: Simplify right side
    40,425,745.60x = 1,291,286,716,565,139
  5. Step 5: Solve for x
    x = 1,291,286,716,565,139/40,425,745.60
  6. Step 6: Final answer
    x = 31,942,186.78

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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.