Home / 31,565,869-47,212,021.20-18,581,074.12

Finding the Fourth Proportional to 31,565,869, 47,212,021.20 and 18,581,074.12

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Solution

The fourth proportional to 31,565,869, 47,212,021.20 and 18,581,074.12 is: 27,791,095.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,565,869 : 47,212,021.20 = 18,581,074.12 : x
  2. Step 2: Convert to fraction form
    31,565,869/47,212,021.20 = 18,581,074.12/x
  3. Step 3: Cross multiply
    31,565,869x = 47,212,021.20 × 18,581,074.12
  4. Step 4: Simplify right side
    31,565,869x = 877,250,065,272,211.50
  5. Step 5: Solve for x
    x = 877,250,065,272,211.50/31,565,869
  6. Step 6: Final answer
    x = 27,791,095.04

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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.