Home / 288,005,790.84-397,449,044.64-155,846,788.62

Finding the Fourth Proportional to 288,005,790.84, 397,449,044.64 and 155,846,788.62

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Solution

The fourth proportional to 288,005,790.84, 397,449,044.64 and 155,846,788.62 is: 215,069,138.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,005,790.84 : 397,449,044.64 = 155,846,788.62 : x
  2. Step 2: Convert to fraction form
    288,005,790.84/397,449,044.64 = 155,846,788.62/x
  3. Step 3: Cross multiply
    288,005,790.84x = 397,449,044.64 × 155,846,788.62
  4. Step 4: Simplify right side
    288,005,790.84x = 61,941,157,247,231,024
  5. Step 5: Solve for x
    x = 61,941,157,247,231,024/288,005,790.84
  6. Step 6: Final answer
    x = 215,069,138.25

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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.