Home / 12,528,035.10-18,792,038.07-3,430,202.58

Finding the Fourth Proportional to 12,528,035.10, 18,792,038.07 and 3,430,202.58

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Solution

The fourth proportional to 12,528,035.10, 18,792,038.07 and 3,430,202.58 is: 5,145,299.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,528,035.10 : 18,792,038.07 = 3,430,202.58 : x
  2. Step 2: Convert to fraction form
    12,528,035.10/18,792,038.07 = 3,430,202.58/x
  3. Step 3: Cross multiply
    12,528,035.10x = 18,792,038.07 × 3,430,202.58
  4. Step 4: Simplify right side
    12,528,035.10x = 64,460,497,471,172.23
  5. Step 5: Solve for x
    x = 64,460,497,471,172.23/12,528,035.10
  6. Step 6: Final answer
    x = 5,145,299.88

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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.