Home / 18,792,374.40-28,188,561.60-12,730,010.40

Finding the Fourth Proportional to 18,792,374.40, 28,188,561.60 and 12,730,010.40

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Solution

The fourth proportional to 18,792,374.40, 28,188,561.60 and 12,730,010.40 is: 19,095,015.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,792,374.40 : 28,188,561.60 = 12,730,010.40 : x
  2. Step 2: Convert to fraction form
    18,792,374.40/28,188,561.60 = 12,730,010.40/x
  3. Step 3: Cross multiply
    18,792,374.40x = 28,188,561.60 × 12,730,010.40
  4. Step 4: Simplify right side
    18,792,374.40x = 358,840,682,329,040.69
  5. Step 5: Solve for x
    x = 358,840,682,329,040.69/18,792,374.40
  6. Step 6: Final answer
    x = 19,095,015.60

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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.