Home / 421,415,758,238.86-581,554,176,771.36-228,727,970,889.85

Finding the Fourth Proportional to 421,415,758,238.86, 581,554,176,771.36 and 228,727,970,889.85

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Solution

The fourth proportional to 421,415,758,238.86, 581,554,176,771.36 and 228,727,970,889.85 is: 315,644,833,433.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,415,758,238.86 : 581,554,176,771.36 = 228,727,970,889.85 : x
  2. Step 2: Convert to fraction form
    421,415,758,238.86/581,554,176,771.36 = 228,727,970,889.85/x
  3. Step 3: Cross multiply
    421,415,758,238.86x = 581,554,176,771.36 × 228,727,970,889.85
  4. Step 4: Simplify right side
    421,415,758,238.86x = 133,017,706,815,430,307,348,480
  5. Step 5: Solve for x
    x = 133,017,706,815,430,307,348,480/421,415,758,238.86
  6. Step 6: Final answer
    x = 315,644,833,433.20

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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.