Home / 840,122,741.93-1,260,173,976-218,282,949.86

Finding the Fourth Proportional to 840,122,741.93, 1,260,173,976 and 218,282,949.86

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Solution

The fourth proportional to 840,122,741.93, 1,260,173,976 and 218,282,949.86 is: 327,421,790.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,122,741.93 : 1,260,173,976 = 218,282,949.86 : x
  2. Step 2: Convert to fraction form
    840,122,741.93/1,260,173,976 = 218,282,949.86/x
  3. Step 3: Cross multiply
    840,122,741.93x = 1,260,173,976 × 218,282,949.86
  4. Step 4: Simplify right side
    840,122,741.93x = 275,074,492,811,783,968
  5. Step 5: Solve for x
    x = 275,074,492,811,783,968/840,122,741.93
  6. Step 6: Final answer
    x = 327,421,790.99

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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.