Home / 12,737,986.90-19,106,980.35-12,528,034.90

Finding the Fourth Proportional to 12,737,986.90, 19,106,980.35 and 12,528,034.90

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Solution

The fourth proportional to 12,737,986.90, 19,106,980.35 and 12,528,034.90 is: 18,792,052.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,737,986.90 : 19,106,980.35 = 12,528,034.90 : x
  2. Step 2: Convert to fraction form
    12,737,986.90/19,106,980.35 = 12,528,034.90/x
  3. Step 3: Cross multiply
    12,737,986.90x = 19,106,980.35 × 12,528,034.90
  4. Step 4: Simplify right side
    12,737,986.90x = 239,372,916,658,414.25
  5. Step 5: Solve for x
    x = 239,372,916,658,414.25/12,737,986.90
  6. Step 6: Final answer
    x = 18,792,052.35

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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.