Home / 259,790,416.76-358,509,720.12-142,315,580.54

Finding the Fourth Proportional to 259,790,416.76, 358,509,720.12 and 142,315,580.54

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Solution

The fourth proportional to 259,790,416.76, 358,509,720.12 and 142,315,580.54 is: 196,394,923.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,790,416.76 : 358,509,720.12 = 142,315,580.54 : x
  2. Step 2: Convert to fraction form
    259,790,416.76/358,509,720.12 = 142,315,580.54/x
  3. Step 3: Cross multiply
    259,790,416.76x = 358,509,720.12 × 142,315,580.54
  4. Step 4: Simplify right side
    259,790,416.76x = 51,021,518,948,110,720
  5. Step 5: Solve for x
    x = 51,021,518,948,110,720/259,790,416.76
  6. Step 6: Final answer
    x = 196,394,923.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.