Home / 51,469,983.91-77,219,918.74-20,748,708.91

Finding the Fourth Proportional to 51,469,983.91, 77,219,918.74 and 20,748,708.91

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Solution

The fourth proportional to 51,469,983.91, 77,219,918.74 and 20,748,708.91 is: 31,129,087.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,469,983.91 : 77,219,918.74 = 20,748,708.91 : x
  2. Step 2: Convert to fraction form
    51,469,983.91/77,219,918.74 = 20,748,708.91/x
  3. Step 3: Cross multiply
    51,469,983.91x = 77,219,918.74 × 20,748,708.91
  4. Step 4: Simplify right side
    51,469,983.91x = 1,602,213,615,604,014.25
  5. Step 5: Solve for x
    x = 1,602,213,615,604,014.25/51,469,983.91
  6. Step 6: Final answer
    x = 31,129,087.17

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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.