Home / 196,824,824.80-295,237,237.20-81,771,128.80

Finding the Fourth Proportional to 196,824,824.80, 295,237,237.20 and 81,771,128.80

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Solution

The fourth proportional to 196,824,824.80, 295,237,237.20 and 81,771,128.80 is: 122,656,693.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,824,824.80 : 295,237,237.20 = 81,771,128.80 : x
  2. Step 2: Convert to fraction form
    196,824,824.80/295,237,237.20 = 81,771,128.80/x
  3. Step 3: Cross multiply
    196,824,824.80x = 295,237,237.20 × 81,771,128.80
  4. Step 4: Simplify right side
    196,824,824.80x = 24,141,882,149,637,348
  5. Step 5: Solve for x
    x = 24,141,882,149,637,348/196,824,824.80
  6. Step 6: Final answer
    x = 122,656,693.20

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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.