Home / 221,617,809.60-332,426,714.40-129,784,804.80

Finding the Fourth Proportional to 221,617,809.60, 332,426,714.40 and 129,784,804.80

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Solution

The fourth proportional to 221,617,809.60, 332,426,714.40 and 129,784,804.80 is: 194,677,207.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,617,809.60 : 332,426,714.40 = 129,784,804.80 : x
  2. Step 2: Convert to fraction form
    221,617,809.60/332,426,714.40 = 129,784,804.80/x
  3. Step 3: Cross multiply
    221,617,809.60x = 332,426,714.40 × 129,784,804.80
  4. Step 4: Simplify right side
    221,617,809.60x = 43,143,936,238,709,344
  5. Step 5: Solve for x
    x = 43,143,936,238,709,344/221,617,809.60
  6. Step 6: Final answer
    x = 194,677,207.20

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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.