Home / 806,573,999.70-1,209,860,999.55-397,825,967.70

Finding the Fourth Proportional to 806,573,999.70, 1,209,860,999.55 and 397,825,967.70

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Solution

The fourth proportional to 806,573,999.70, 1,209,860,999.55 and 397,825,967.70 is: 596,738,951.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    806,573,999.70 : 1,209,860,999.55 = 397,825,967.70 : x
  2. Step 2: Convert to fraction form
    806,573,999.70/1,209,860,999.55 = 397,825,967.70/x
  3. Step 3: Cross multiply
    806,573,999.70x = 1,209,860,999.55 × 397,825,967.70
  4. Step 4: Simplify right side
    806,573,999.70x = 481,314,122,928,467,968
  5. Step 5: Solve for x
    x = 481,314,122,928,467,968/806,573,999.70
  6. Step 6: Final answer
    x = 596,738,951.55

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1.5x scale

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.