Home / 206,917,811.28-310,384,047.96-51,472,428.48

Finding the Fourth Proportional to 206,917,811.28, 310,384,047.96 and 51,472,428.48

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Solution

The fourth proportional to 206,917,811.28, 310,384,047.96 and 51,472,428.48 is: 77,210,466.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,917,811.28 : 310,384,047.96 = 51,472,428.48 : x
  2. Step 2: Convert to fraction form
    206,917,811.28/310,384,047.96 = 51,472,428.48/x
  3. Step 3: Cross multiply
    206,917,811.28x = 310,384,047.96 × 51,472,428.48
  4. Step 4: Simplify right side
    206,917,811.28x = 15,976,220,709,953,988
  5. Step 5: Solve for x
    x = 15,976,220,709,953,988/206,917,811.28
  6. Step 6: Final answer
    x = 77,210,466.37

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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.