Home / 18,787,038.30-28,180,557.45-9,221,100.30

Finding the Fourth Proportional to 18,787,038.30, 28,180,557.45 and 9,221,100.30

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Solution

The fourth proportional to 18,787,038.30, 28,180,557.45 and 9,221,100.30 is: 13,831,650.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,787,038.30 : 28,180,557.45 = 9,221,100.30 : x
  2. Step 2: Convert to fraction form
    18,787,038.30/28,180,557.45 = 9,221,100.30/x
  3. Step 3: Cross multiply
    18,787,038.30x = 28,180,557.45 × 9,221,100.30
  4. Step 4: Simplify right side
    18,787,038.30x = 259,855,746,756,362.25
  5. Step 5: Solve for x
    x = 259,855,746,756,362.25/18,787,038.30
  6. Step 6: Final answer
    x = 13,831,650.45

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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.