Home / 666,631,535.20-919,958,876.40-369,278,332

Finding the Fourth Proportional to 666,631,535.20, 919,958,876.40 and 369,278,332

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Solution

The fourth proportional to 666,631,535.20, 919,958,876.40 and 369,278,332 is: 509,608,174.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,631,535.20 : 919,958,876.40 = 369,278,332 : x
  2. Step 2: Convert to fraction form
    666,631,535.20/919,958,876.40 = 369,278,332/x
  3. Step 3: Cross multiply
    666,631,535.20x = 919,958,876.40 × 369,278,332
  4. Step 4: Simplify right side
    666,631,535.20x = 339,720,879,385,586,176
  5. Step 5: Solve for x
    x = 339,720,879,385,586,176/666,631,535.20
  6. Step 6: Final answer
    x = 509,608,174.00

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.