Home / 479,682,715.86-661,966,711.47-281,447,582.94

Finding the Fourth Proportional to 479,682,715.86, 661,966,711.47 and 281,447,582.94

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Solution

The fourth proportional to 479,682,715.86, 661,966,711.47 and 281,447,582.94 is: 388,400,342.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,682,715.86 : 661,966,711.47 = 281,447,582.94 : x
  2. Step 2: Convert to fraction form
    479,682,715.86/661,966,711.47 = 281,447,582.94/x
  3. Step 3: Cross multiply
    479,682,715.86x = 661,966,711.47 × 281,447,582.94
  4. Step 4: Simplify right side
    479,682,715.86x = 186,308,930,929,971,872
  5. Step 5: Solve for x
    x = 186,308,930,929,971,872/479,682,715.86
  6. Step 6: Final answer
    x = 388,400,342.08

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.