Home / 31,941,716.40-47,912,574.60-19,187,132.40

Finding the Fourth Proportional to 31,941,716.40, 47,912,574.60 and 19,187,132.40

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Solution

The fourth proportional to 31,941,716.40, 47,912,574.60 and 19,187,132.40 is: 28,780,698.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,941,716.40 : 47,912,574.60 = 19,187,132.40 : x
  2. Step 2: Convert to fraction form
    31,941,716.40/47,912,574.60 = 19,187,132.40/x
  3. Step 3: Cross multiply
    31,941,716.40x = 47,912,574.60 × 19,187,132.40
  4. Step 4: Simplify right side
    31,941,716.40x = 919,304,912,475,077
  5. Step 5: Solve for x
    x = 919,304,912,475,077/31,941,716.40
  6. Step 6: Final answer
    x = 28,780,698.60

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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.