Home / 1,238,433,617.79-1,709,016,289.34-673,899,245.24

Finding the Fourth Proportional to 1,238,433,617.79, 1,709,016,289.34 and 673,899,245.24

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Solution

The fourth proportional to 1,238,433,617.79, 1,709,016,289.34 and 673,899,245.24 is: 929,968,930.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,238,433,617.79 : 1,709,016,289.34 = 673,899,245.24 : x
  2. Step 2: Convert to fraction form
    1,238,433,617.79/1,709,016,289.34 = 673,899,245.24/x
  3. Step 3: Cross multiply
    1,238,433,617.79x = 1,709,016,289.34 × 673,899,245.24
  4. Step 4: Simplify right side
    1,238,433,617.79x = 1,151,704,787,477,176,960
  5. Step 5: Solve for x
    x = 1,151,704,787,477,176,960/1,238,433,617.79
  6. Step 6: Final answer
    x = 929,968,930.86

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.