Home / 419,079,628.80-578,342,991.07-240,496,188.06

Finding the Fourth Proportional to 419,079,628.80, 578,342,991.07 and 240,496,188.06

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Solution

The fourth proportional to 419,079,628.80, 578,342,991.07 and 240,496,188.06 is: 331,892,259.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,079,628.80 : 578,342,991.07 = 240,496,188.06 : x
  2. Step 2: Convert to fraction form
    419,079,628.80/578,342,991.07 = 240,496,188.06/x
  3. Step 3: Cross multiply
    419,079,628.80x = 578,342,991.07 × 240,496,188.06
  4. Step 4: Simplify right side
    419,079,628.80x = 139,089,284,746,023,024
  5. Step 5: Solve for x
    x = 139,089,284,746,023,024/419,079,628.80
  6. Step 6: Final answer
    x = 331,892,259.10

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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.