Home / 51,840,980.80-77,761,471.20-19,928,276.80

Finding the Fourth Proportional to 51,840,980.80, 77,761,471.20 and 19,928,276.80

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Solution

The fourth proportional to 51,840,980.80, 77,761,471.20 and 19,928,276.80 is: 29,892,415.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,840,980.80 : 77,761,471.20 = 19,928,276.80 : x
  2. Step 2: Convert to fraction form
    51,840,980.80/77,761,471.20 = 19,928,276.80/x
  3. Step 3: Cross multiply
    51,840,980.80x = 77,761,471.20 × 19,928,276.80
  4. Step 4: Simplify right side
    51,840,980.80x = 1,549,652,122,448,828.25
  5. Step 5: Solve for x
    x = 1,549,652,122,448,828.25/51,840,980.80
  6. Step 6: Final answer
    x = 29,892,415.20

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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.