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Finding the Fourth Proportional to 331,872,693.60, 497,809,040.40 and 159,685,809.60

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Solution

The fourth proportional to 331,872,693.60, 497,809,040.40 and 159,685,809.60 is: 239,528,714.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,872,693.60 : 497,809,040.40 = 159,685,809.60 : x
  2. Step 2: Convert to fraction form
    331,872,693.60/497,809,040.40 = 159,685,809.60/x
  3. Step 3: Cross multiply
    331,872,693.60x = 497,809,040.40 × 159,685,809.60
  4. Step 4: Simplify right side
    331,872,693.60x = 79,493,039,642,473,104
  5. Step 5: Solve for x
    x = 79,493,039,642,473,104/331,872,693.60
  6. Step 6: Final answer
    x = 239,528,714.40

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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.