Home / 31,417,999.20-47,126,998.80-8,698,896.45

Finding the Fourth Proportional to 31,417,999.20, 47,126,998.80 and 8,698,896.45

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Solution

The fourth proportional to 31,417,999.20, 47,126,998.80 and 8,698,896.45 is: 13,048,344.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,417,999.20 : 47,126,998.80 = 8,698,896.45 : x
  2. Step 2: Convert to fraction form
    31,417,999.20/47,126,998.80 = 8,698,896.45/x
  3. Step 3: Cross multiply
    31,417,999.20x = 47,126,998.80 × 8,698,896.45
  4. Step 4: Simplify right side
    31,417,999.20x = 409,952,882,560,474.19
  5. Step 5: Solve for x
    x = 409,952,882,560,474.19/31,417,999.20
  6. Step 6: Final answer
    x = 13,048,344.68

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1.5x scale

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.