Home / 393,984,009.90-590,976,014.85-262,470,077.10

Finding the Fourth Proportional to 393,984,009.90, 590,976,014.85 and 262,470,077.10

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Solution

The fourth proportional to 393,984,009.90, 590,976,014.85 and 262,470,077.10 is: 393,705,115.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,984,009.90 : 590,976,014.85 = 262,470,077.10 : x
  2. Step 2: Convert to fraction form
    393,984,009.90/590,976,014.85 = 262,470,077.10/x
  3. Step 3: Cross multiply
    393,984,009.90x = 590,976,014.85 × 262,470,077.10
  4. Step 4: Simplify right side
    393,984,009.90x = 155,113,520,181,930,240
  5. Step 5: Solve for x
    x = 155,113,520,181,930,240/393,984,009.90
  6. Step 6: Final answer
    x = 393,705,115.65

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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.