Home / 20,528,209.80-30,792,314.70-20,209,345.20

Finding the Fourth Proportional to 20,528,209.80, 30,792,314.70 and 20,209,345.20

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Solution

The fourth proportional to 20,528,209.80, 30,792,314.70 and 20,209,345.20 is: 30,314,017.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,528,209.80 : 30,792,314.70 = 20,209,345.20 : x
  2. Step 2: Convert to fraction form
    20,528,209.80/30,792,314.70 = 20,209,345.20/x
  3. Step 3: Cross multiply
    20,528,209.80x = 30,792,314.70 × 20,209,345.20
  4. Step 4: Simplify right side
    20,528,209.80x = 622,292,517,279,334.38
  5. Step 5: Solve for x
    x = 622,292,517,279,334.38/20,528,209.80
  6. Step 6: Final answer
    x = 30,314,017.80

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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.