Home / 31,415,213.80-47,117,571.90-8,698,407.40

Finding the Fourth Proportional to 31,415,213.80, 47,117,571.90 and 8,698,407.40

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Solution

The fourth proportional to 31,415,213.80, 47,117,571.90 and 8,698,407.40 is: 13,046,157.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,415,213.80 : 47,117,571.90 = 8,698,407.40 : x
  2. Step 2: Convert to fraction form
    31,415,213.80/47,117,571.90 = 8,698,407.40/x
  3. Step 3: Cross multiply
    31,415,213.80x = 47,117,571.90 × 8,698,407.40
  4. Step 4: Simplify right side
    31,415,213.80x = 409,847,836,084,992.06
  5. Step 5: Solve for x
    x = 409,847,836,084,992.06/31,415,213.80
  6. Step 6: Final answer
    x = 13,046,157.79

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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.