Home / 49,761,206.40-74,641,809.60-21,039,772.80

Finding the Fourth Proportional to 49,761,206.40, 74,641,809.60 and 21,039,772.80

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Solution

The fourth proportional to 49,761,206.40, 74,641,809.60 and 21,039,772.80 is: 31,559,659.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,761,206.40 : 74,641,809.60 = 21,039,772.80 : x
  2. Step 2: Convert to fraction form
    49,761,206.40/74,641,809.60 = 21,039,772.80/x
  3. Step 3: Cross multiply
    49,761,206.40x = 74,641,809.60 × 21,039,772.80
  4. Step 4: Simplify right side
    49,761,206.40x = 1,570,446,715,364,858.75
  5. Step 5: Solve for x
    x = 1,570,446,715,364,858.75/49,761,206.40
  6. Step 6: Final answer
    x = 31,559,659.20

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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.