Home / 786,370,659.20-1,178,051,937.60-422,744,163.20

Finding the Fourth Proportional to 786,370,659.20, 1,178,051,937.60 and 422,744,163.20

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Solution

The fourth proportional to 786,370,659.20, 1,178,051,937.60 and 422,744,163.20 is: 633,307,683.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,370,659.20 : 1,178,051,937.60 = 422,744,163.20 : x
  2. Step 2: Convert to fraction form
    786,370,659.20/1,178,051,937.60 = 422,744,163.20/x
  3. Step 3: Cross multiply
    786,370,659.20x = 1,178,051,937.60 × 422,744,163.20
  4. Step 4: Simplify right side
    786,370,659.20x = 498,014,580,566,850,560
  5. Step 5: Solve for x
    x = 498,014,580,566,850,560/786,370,659.20
  6. Step 6: Final answer
    x = 633,307,683.52

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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.