Home / 12,792,020.40-19,188,030.60-5,214,855.60

Finding the Fourth Proportional to 12,792,020.40, 19,188,030.60 and 5,214,855.60

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Solution

The fourth proportional to 12,792,020.40, 19,188,030.60 and 5,214,855.60 is: 7,822,283.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,792,020.40 : 19,188,030.60 = 5,214,855.60 : x
  2. Step 2: Convert to fraction form
    12,792,020.40/19,188,030.60 = 5,214,855.60/x
  3. Step 3: Cross multiply
    12,792,020.40x = 19,188,030.60 × 5,214,855.60
  4. Step 4: Simplify right side
    12,792,020.40x = 100,062,808,827,381.36
  5. Step 5: Solve for x
    x = 100,062,808,827,381.36/12,792,020.40
  6. Step 6: Final answer
    x = 7,822,283.40

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1.5x scale

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.