Home / 1,376,371,009.89-2,065,202,215.65-686,332,072.26

Finding the Fourth Proportional to 1,376,371,009.89, 2,065,202,215.65 and 686,332,072.26

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Solution

The fourth proportional to 1,376,371,009.89, 2,065,202,215.65 and 686,332,072.26 is: 1,029,820,089.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,376,371,009.89 : 2,065,202,215.65 = 686,332,072.26 : x
  2. Step 2: Convert to fraction form
    1,376,371,009.89/2,065,202,215.65 = 686,332,072.26/x
  3. Step 3: Cross multiply
    1,376,371,009.89x = 2,065,202,215.65 × 686,332,072.26
  4. Step 4: Simplify right side
    1,376,371,009.89x = 1,417,414,516,303,008,000
  5. Step 5: Solve for x
    x = 1,417,414,516,303,008,000/1,376,371,009.89
  6. Step 6: Final answer
    x = 1,029,820,089.29

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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.