Home / 5,317,020-7,976,371.55-1,905,231.21

Finding the Fourth Proportional to 5,317,020, 7,976,371.55 and 1,905,231.21

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Solution

The fourth proportional to 5,317,020, 7,976,371.55 and 1,905,231.21 is: 2,858,148.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,317,020 : 7,976,371.55 = 1,905,231.21 : x
  2. Step 2: Convert to fraction form
    5,317,020/7,976,371.55 = 1,905,231.21/x
  3. Step 3: Cross multiply
    5,317,020x = 7,976,371.55 × 1,905,231.21
  4. Step 4: Simplify right side
    5,317,020x = 15,196,831,980,178.53
  5. Step 5: Solve for x
    x = 15,196,831,980,178.53/5,317,020
  6. Step 6: Final answer
    x = 2,858,148.36

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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.