Home / 858,650,019.27-1,288,180,519.43-276,438,689.07

Finding the Fourth Proportional to 858,650,019.27, 1,288,180,519.43 and 276,438,689.07

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Solution

The fourth proportional to 858,650,019.27, 1,288,180,519.43 and 276,438,689.07 is: 414,724,190.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,650,019.27 : 1,288,180,519.43 = 276,438,689.07 : x
  2. Step 2: Convert to fraction form
    858,650,019.27/1,288,180,519.43 = 276,438,689.07/x
  3. Step 3: Cross multiply
    858,650,019.27x = 1,288,180,519.43 × 276,438,689.07
  4. Step 4: Simplify right side
    858,650,019.27x = 356,102,934,075,358,656
  5. Step 5: Solve for x
    x = 356,102,934,075,358,656/858,650,019.27
  6. Step 6: Final answer
    x = 414,724,190.40

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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.