Home / 513,827,148.03-708,959,932.26-290,808,829.57

Finding the Fourth Proportional to 513,827,148.03, 708,959,932.26 and 290,808,829.57

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Solution

The fourth proportional to 513,827,148.03, 708,959,932.26 and 290,808,829.57 is: 401,247,401.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,827,148.03 : 708,959,932.26 = 290,808,829.57 : x
  2. Step 2: Convert to fraction form
    513,827,148.03/708,959,932.26 = 290,808,829.57/x
  3. Step 3: Cross multiply
    513,827,148.03x = 708,959,932.26 × 290,808,829.57
  4. Step 4: Simplify right side
    513,827,148.03x = 206,171,808,112,557,088
  5. Step 5: Solve for x
    x = 206,171,808,112,557,088/513,827,148.03
  6. Step 6: Final answer
    x = 401,247,401.79

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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.