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Finding the Fourth Proportional to 355,752,605.80, 533,628,908.70 and 252,440,475.40

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Solution

The fourth proportional to 355,752,605.80, 533,628,908.70 and 252,440,475.40 is: 378,660,713.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,752,605.80 : 533,628,908.70 = 252,440,475.40 : x
  2. Step 2: Convert to fraction form
    355,752,605.80/533,628,908.70 = 252,440,475.40/x
  3. Step 3: Cross multiply
    355,752,605.80x = 533,628,908.70 × 252,440,475.40
  4. Step 4: Simplify right side
    355,752,605.80x = 134,709,535,399,411,200
  5. Step 5: Solve for x
    x = 134,709,535,399,411,200/355,752,605.80
  6. Step 6: Final answer
    x = 378,660,713.10

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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.