Home / 492,192,800.40-738,289,200.60-412,168,429.20

Finding the Fourth Proportional to 492,192,800.40, 738,289,200.60 and 412,168,429.20

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Solution

The fourth proportional to 492,192,800.40, 738,289,200.60 and 412,168,429.20 is: 618,252,643.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,192,800.40 : 738,289,200.60 = 412,168,429.20 : x
  2. Step 2: Convert to fraction form
    492,192,800.40/738,289,200.60 = 412,168,429.20/x
  3. Step 3: Cross multiply
    492,192,800.40x = 738,289,200.60 × 412,168,429.20
  4. Step 4: Simplify right side
    492,192,800.40x = 304,299,500,106,625,728
  5. Step 5: Solve for x
    x = 304,299,500,106,625,728/492,192,800.40
  6. Step 6: Final answer
    x = 618,252,643.80

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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.