Home / 49,780,334.40-74,680,999.20-21,011,661.60

Finding the Fourth Proportional to 49,780,334.40, 74,680,999.20 and 21,011,661.60

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Solution

The fourth proportional to 49,780,334.40, 74,680,999.20 and 21,011,661.60 is: 31,521,923.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,780,334.40 : 74,680,999.20 = 21,011,661.60 : x
  2. Step 2: Convert to fraction form
    49,780,334.40/74,680,999.20 = 21,011,661.60/x
  3. Step 3: Cross multiply
    49,780,334.40x = 74,680,999.20 × 21,011,661.60
  4. Step 4: Simplify right side
    49,780,334.40x = 1,569,171,883,140,271
  5. Step 5: Solve for x
    x = 1,569,171,883,140,271/49,780,334.40
  6. Step 6: Final answer
    x = 31,521,923.31

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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.