Home / 355,505,478.14-490,577,826.63-198,842,317.90

Finding the Fourth Proportional to 355,505,478.14, 490,577,826.63 and 198,842,317.90

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Solution

The fourth proportional to 355,505,478.14, 490,577,826.63 and 198,842,317.90 is: 274,391,361.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,505,478.14 : 490,577,826.63 = 198,842,317.90 : x
  2. Step 2: Convert to fraction form
    355,505,478.14/490,577,826.63 = 198,842,317.90/x
  3. Step 3: Cross multiply
    355,505,478.14x = 490,577,826.63 × 198,842,317.90
  4. Step 4: Simplify right side
    355,505,478.14x = 97,547,632,155,746,320
  5. Step 5: Solve for x
    x = 97,547,632,155,746,320/355,505,478.14
  6. Step 6: Final answer
    x = 274,391,361.47

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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.