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Finding the Fourth Proportional to 215,674,704.80, 322,840,210.80 and 155,208,528.80

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Solution

The fourth proportional to 215,674,704.80, 322,840,210.80 and 155,208,528.80 is: 232,329,304.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,674,704.80 : 322,840,210.80 = 155,208,528.80 : x
  2. Step 2: Convert to fraction form
    215,674,704.80/322,840,210.80 = 155,208,528.80/x
  3. Step 3: Cross multiply
    215,674,704.80x = 322,840,210.80 × 155,208,528.80
  4. Step 4: Simplify right side
    215,674,704.80x = 50,107,554,155,749,880
  5. Step 5: Solve for x
    x = 50,107,554,155,749,880/215,674,704.80
  6. Step 6: Final answer
    x = 232,329,304.46

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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.