Home / 291,492,414.40-437,243,287.20-76,081,662.40

Finding the Fourth Proportional to 291,492,414.40, 437,243,287.20 and 76,081,662.40

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Solution

The fourth proportional to 291,492,414.40, 437,243,287.20 and 76,081,662.40 is: 114,123,711.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,492,414.40 : 437,243,287.20 = 76,081,662.40 : x
  2. Step 2: Convert to fraction form
    291,492,414.40/437,243,287.20 = 76,081,662.40/x
  3. Step 3: Cross multiply
    291,492,414.40x = 437,243,287.20 × 76,081,662.40
  4. Step 4: Simplify right side
    291,492,414.40x = 33,266,196,163,416,644
  5. Step 5: Solve for x
    x = 33,266,196,163,416,644/291,492,414.40
  6. Step 6: Final answer
    x = 114,123,711.36

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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.