Home / 472,148,124.40-708,222,186.60-165,400,379.20

Finding the Fourth Proportional to 472,148,124.40, 708,222,186.60 and 165,400,379.20

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Solution

The fourth proportional to 472,148,124.40, 708,222,186.60 and 165,400,379.20 is: 248,100,568.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,148,124.40 : 708,222,186.60 = 165,400,379.20 : x
  2. Step 2: Convert to fraction form
    472,148,124.40/708,222,186.60 = 165,400,379.20/x
  3. Step 3: Cross multiply
    472,148,124.40x = 708,222,186.60 × 165,400,379.20
  4. Step 4: Simplify right side
    472,148,124.40x = 117,140,218,221,493,152
  5. Step 5: Solve for x
    x = 117,140,218,221,493,152/472,148,124.40
  6. Step 6: Final answer
    x = 248,100,568.80

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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.