Home / 858,650,020.27-1,288,180,520.93-276,438,690.07

Finding the Fourth Proportional to 858,650,020.27, 1,288,180,520.93 and 276,438,690.07

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Solution

The fourth proportional to 858,650,020.27, 1,288,180,520.93 and 276,438,690.07 is: 414,724,191.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,650,020.27 : 1,288,180,520.93 = 276,438,690.07 : x
  2. Step 2: Convert to fraction form
    858,650,020.27/1,288,180,520.93 = 276,438,690.07/x
  3. Step 3: Cross multiply
    858,650,020.27x = 1,288,180,520.93 × 276,438,690.07
  4. Step 4: Simplify right side
    858,650,020.27x = 356,102,935,779,579,456
  5. Step 5: Solve for x
    x = 356,102,935,779,579,456/858,650,020.27
  6. Step 6: Final answer
    x = 414,724,191.90

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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.