Home / 128,317,851.50-192,399,910.58-40,841,582.77

Finding the Fourth Proportional to 128,317,851.50, 192,399,910.58 and 40,841,582.77

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Solution

The fourth proportional to 128,317,851.50, 192,399,910.58 and 40,841,582.77 is: 61,237,908.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,317,851.50 : 192,399,910.58 = 40,841,582.77 : x
  2. Step 2: Convert to fraction form
    128,317,851.50/192,399,910.58 = 40,841,582.77/x
  3. Step 3: Cross multiply
    128,317,851.50x = 192,399,910.58 × 40,841,582.77
  4. Step 4: Simplify right side
    128,317,851.50x = 7,857,916,871,931,670
  5. Step 5: Solve for x
    x = 7,857,916,871,931,670/128,317,851.50
  6. Step 6: Final answer
    x = 61,237,908.68

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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.