Home / 21,104,880,376.86-31,658,338,720.74-6,939,532,516.92

Finding the Fourth Proportional to 21,104,880,376.86, 31,658,338,720.74 and 6,939,532,516.92

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Solution

The fourth proportional to 21,104,880,376.86, 31,658,338,720.74 and 6,939,532,516.92 is: 10,409,633,556.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,104,880,376.86 : 31,658,338,720.74 = 6,939,532,516.92 : x
  2. Step 2: Convert to fraction form
    21,104,880,376.86/31,658,338,720.74 = 6,939,532,516.92/x
  3. Step 3: Cross multiply
    21,104,880,376.86x = 31,658,338,720.74 × 6,939,532,516.92
  4. Step 4: Simplify right side
    21,104,880,376.86x = 219,694,070,984,242,757,632
  5. Step 5: Solve for x
    x = 219,694,070,984,242,757,632/21,104,880,376.86
  6. Step 6: Final answer
    x = 10,409,633,556.85

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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.