Home / 50,949,223.80-76,428,501.30-20,650,817.40

Finding the Fourth Proportional to 50,949,223.80, 76,428,501.30 and 20,650,817.40

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Solution

The fourth proportional to 50,949,223.80, 76,428,501.30 and 20,650,817.40 is: 30,978,117.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,949,223.80 : 76,428,501.30 = 20,650,817.40 : x
  2. Step 2: Convert to fraction form
    50,949,223.80/76,428,501.30 = 20,650,817.40/x
  3. Step 3: Cross multiply
    50,949,223.80x = 76,428,501.30 × 20,650,817.40
  4. Step 4: Simplify right side
    50,949,223.80x = 1,578,311,024,501,962.50
  5. Step 5: Solve for x
    x = 1,578,311,024,501,962.50/50,949,223.80
  6. Step 6: Final answer
    x = 30,978,117.17

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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.