Home / 830,734,609.79-1,246,104,025.24-339,447,880.12

Finding the Fourth Proportional to 830,734,609.79, 1,246,104,025.24 and 339,447,880.12

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Solution

The fourth proportional to 830,734,609.79, 1,246,104,025.24 and 339,447,880.12 is: 509,172,682.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,734,609.79 : 1,246,104,025.24 = 339,447,880.12 : x
  2. Step 2: Convert to fraction form
    830,734,609.79/1,246,104,025.24 = 339,447,880.12/x
  3. Step 3: Cross multiply
    830,734,609.79x = 1,246,104,025.24 × 339,447,880.12
  4. Step 4: Simplify right side
    830,734,609.79x = 422,987,369,774,777,728
  5. Step 5: Solve for x
    x = 422,987,369,774,777,728/830,734,609.79
  6. Step 6: Final answer
    x = 509,172,682.58

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Double scale
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1.5x scale

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.