Home / 31,651,716.40-47,477,574.60-18,897,132.40

Finding the Fourth Proportional to 31,651,716.40, 47,477,574.60 and 18,897,132.40

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Solution

The fourth proportional to 31,651,716.40, 47,477,574.60 and 18,897,132.40 is: 28,345,698.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,651,716.40 : 47,477,574.60 = 18,897,132.40 : x
  2. Step 2: Convert to fraction form
    31,651,716.40/47,477,574.60 = 18,897,132.40/x
  3. Step 3: Cross multiply
    31,651,716.40x = 47,477,574.60 × 18,897,132.40
  4. Step 4: Simplify right side
    31,651,716.40x = 897,190,013,247,077
  5. Step 5: Solve for x
    x = 897,190,013,247,077/31,651,716.40
  6. Step 6: Final answer
    x = 28,345,698.60

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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.