Home / 272,433,361.60-408,768,007.20-128,752,235.20

Finding the Fourth Proportional to 272,433,361.60, 408,768,007.20 and 128,752,235.20

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Solution

The fourth proportional to 272,433,361.60, 408,768,007.20 and 128,752,235.20 is: 193,184,103.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,433,361.60 : 408,768,007.20 = 128,752,235.20 : x
  2. Step 2: Convert to fraction form
    272,433,361.60/408,768,007.20 = 128,752,235.20/x
  3. Step 3: Cross multiply
    272,433,361.60x = 408,768,007.20 × 128,752,235.20
  4. Step 4: Simplify right side
    272,433,361.60x = 52,629,794,605,249,696
  5. Step 5: Solve for x
    x = 52,629,794,605,249,696/272,433,361.60
  6. Step 6: Final answer
    x = 193,184,103.06

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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.