Home / 690,586,798.95-953,432,108.78-449,412,584.31

Finding the Fourth Proportional to 690,586,798.95, 953,432,108.78 and 449,412,584.31

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Solution

The fourth proportional to 690,586,798.95, 953,432,108.78 and 449,412,584.31 is: 620,464,203.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,586,798.95 : 953,432,108.78 = 449,412,584.31 : x
  2. Step 2: Convert to fraction form
    690,586,798.95/953,432,108.78 = 449,412,584.31/x
  3. Step 3: Cross multiply
    690,586,798.95x = 953,432,108.78 × 449,412,584.31
  4. Step 4: Simplify right side
    690,586,798.95x = 428,484,387,968,705,792
  5. Step 5: Solve for x
    x = 428,484,387,968,705,792/690,586,798.95
  6. Step 6: Final answer
    x = 620,464,203.23

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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.