Home / 509,336,530.40-764,004,795.60-145,830,886.40

Finding the Fourth Proportional to 509,336,530.40, 764,004,795.60 and 145,830,886.40

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Solution

The fourth proportional to 509,336,530.40, 764,004,795.60 and 145,830,886.40 is: 218,746,329.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,336,530.40 : 764,004,795.60 = 145,830,886.40 : x
  2. Step 2: Convert to fraction form
    509,336,530.40/764,004,795.60 = 145,830,886.40/x
  3. Step 3: Cross multiply
    509,336,530.40x = 764,004,795.60 × 145,830,886.40
  4. Step 4: Simplify right side
    509,336,530.40x = 111,415,496,556,198,832
  5. Step 5: Solve for x
    x = 111,415,496,556,198,832/509,336,530.40
  6. Step 6: Final answer
    x = 218,746,329.60

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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.