Home / 243,157,257.32-335,556,533.12-131,648,067.72

Finding the Fourth Proportional to 243,157,257.32, 335,556,533.12 and 131,648,067.72

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Solution

The fourth proportional to 243,157,257.32, 335,556,533.12 and 131,648,067.72 is: 181,674,072.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,157,257.32 : 335,556,533.12 = 131,648,067.72 : x
  2. Step 2: Convert to fraction form
    243,157,257.32/335,556,533.12 = 131,648,067.72/x
  3. Step 3: Cross multiply
    243,157,257.32x = 335,556,533.12 × 131,648,067.72
  4. Step 4: Simplify right side
    243,157,257.32x = 44,175,369,195,411,944
  5. Step 5: Solve for x
    x = 44,175,369,195,411,944/243,157,257.32
  6. Step 6: Final answer
    x = 181,674,072.50

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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.