Home / 31,503,320.40-47,160,502.20-18,717,243.60

Finding the Fourth Proportional to 31,503,320.40, 47,160,502.20 and 18,717,243.60

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Solution

The fourth proportional to 31,503,320.40, 47,160,502.20 and 18,717,243.60 is: 28,019,732.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,503,320.40 : 47,160,502.20 = 18,717,243.60 : x
  2. Step 2: Convert to fraction form
    31,503,320.40/47,160,502.20 = 18,717,243.60/x
  3. Step 3: Cross multiply
    31,503,320.40x = 47,160,502.20 × 18,717,243.60
  4. Step 4: Simplify right side
    31,503,320.40x = 882,714,607,975,736
  5. Step 5: Solve for x
    x = 882,714,607,975,736/31,503,320.40
  6. Step 6: Final answer
    x = 28,019,732.42

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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.