Home / 1,761,917,996.40-2,639,853,685.80-839,808,812.40

Finding the Fourth Proportional to 1,761,917,996.40, 2,639,853,685.80 and 839,808,812.40

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Solution

The fourth proportional to 1,761,917,996.40, 2,639,853,685.80 and 839,808,812.40 is: 1,258,272,174.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,761,917,996.40 : 2,639,853,685.80 = 839,808,812.40 : x
  2. Step 2: Convert to fraction form
    1,761,917,996.40/2,639,853,685.80 = 839,808,812.40/x
  3. Step 3: Cross multiply
    1,761,917,996.40x = 2,639,853,685.80 × 839,808,812.40
  4. Step 4: Simplify right side
    1,761,917,996.40x = 2,216,972,388,781,460,736
  5. Step 5: Solve for x
    x = 2,216,972,388,781,460,736/1,761,917,996.40
  6. Step 6: Final answer
    x = 1,258,272,174.59

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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.