Home / 442,844,381.70-664,266,572.55-289,962,000.90

Finding the Fourth Proportional to 442,844,381.70, 664,266,572.55 and 289,962,000.90

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Solution

The fourth proportional to 442,844,381.70, 664,266,572.55 and 289,962,000.90 is: 434,943,001.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,844,381.70 : 664,266,572.55 = 289,962,000.90 : x
  2. Step 2: Convert to fraction form
    442,844,381.70/664,266,572.55 = 289,962,000.90/x
  3. Step 3: Cross multiply
    442,844,381.70x = 664,266,572.55 × 289,962,000.90
  4. Step 4: Simplify right side
    442,844,381.70x = 192,612,064,507,582,976
  5. Step 5: Solve for x
    x = 192,612,064,507,582,976/442,844,381.70
  6. Step 6: Final answer
    x = 434,943,001.35

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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.