Home / 221,617,085.60-332,425,628.40-129,784,080.80

Finding the Fourth Proportional to 221,617,085.60, 332,425,628.40 and 129,784,080.80

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Solution

The fourth proportional to 221,617,085.60, 332,425,628.40 and 129,784,080.80 is: 194,676,121.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,617,085.60 : 332,425,628.40 = 129,784,080.80 : x
  2. Step 2: Convert to fraction form
    221,617,085.60/332,425,628.40 = 129,784,080.80/x
  3. Step 3: Cross multiply
    221,617,085.60x = 332,425,628.40 × 129,784,080.80
  4. Step 4: Simplify right side
    221,617,085.60x = 43,143,554,616,256,368
  5. Step 5: Solve for x
    x = 43,143,554,616,256,368/221,617,085.60
  6. Step 6: Final answer
    x = 194,676,121.20

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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.