Home / 842,031,470.42-1,263,133,833.90-317,842,105.58

Finding the Fourth Proportional to 842,031,470.42, 1,263,133,833.90 and 317,842,105.58

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Solution

The fourth proportional to 842,031,470.42, 1,263,133,833.90 and 317,842,105.58 is: 476,795,857.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    842,031,470.42 : 1,263,133,833.90 = 317,842,105.58 : x
  2. Step 2: Convert to fraction form
    842,031,470.42/1,263,133,833.90 = 317,842,105.58/x
  3. Step 3: Cross multiply
    842,031,470.42x = 1,263,133,833.90 × 317,842,105.58
  4. Step 4: Simplify right side
    842,031,470.42x = 401,477,117,396,113,984
  5. Step 5: Solve for x
    x = 401,477,117,396,113,984/842,031,470.42
  6. Step 6: Final answer
    x = 476,795,857.99

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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.