Home / 121,207,658.40-181,811,487.60-30,331,101.60

Finding the Fourth Proportional to 121,207,658.40, 181,811,487.60 and 30,331,101.60

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Solution

The fourth proportional to 121,207,658.40, 181,811,487.60 and 30,331,101.60 is: 45,496,652.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,207,658.40 : 181,811,487.60 = 30,331,101.60 : x
  2. Step 2: Convert to fraction form
    121,207,658.40/181,811,487.60 = 30,331,101.60/x
  3. Step 3: Cross multiply
    121,207,658.40x = 181,811,487.60 × 30,331,101.60
  4. Step 4: Simplify right side
    121,207,658.40x = 5,514,542,702,442,740
  5. Step 5: Solve for x
    x = 5,514,542,702,442,740/121,207,658.40
  6. Step 6: Final answer
    x = 45,496,652.40

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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.