Home / 210,352,449.78-315,429,366-122,939,043.92

Finding the Fourth Proportional to 210,352,449.78, 315,429,366 and 122,939,043.92

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Solution

The fourth proportional to 210,352,449.78, 315,429,366 and 122,939,043.92 is: 184,350,525.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,352,449.78 : 315,429,366 = 122,939,043.92 : x
  2. Step 2: Convert to fraction form
    210,352,449.78/315,429,366 = 122,939,043.92/x
  3. Step 3: Cross multiply
    210,352,449.78x = 315,429,366 × 122,939,043.92
  4. Step 4: Simplify right side
    210,352,449.78x = 38,778,584,680,331,752
  5. Step 5: Solve for x
    x = 38,778,584,680,331,752/210,352,449.78
  6. Step 6: Final answer
    x = 184,350,525.61

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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.