Home / 528,796,821.60-792,911,797.20-221,742,021.60

Finding the Fourth Proportional to 528,796,821.60, 792,911,797.20 and 221,742,021.60

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Solution

The fourth proportional to 528,796,821.60, 792,911,797.20 and 221,742,021.60 is: 332,494,178.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,796,821.60 : 792,911,797.20 = 221,742,021.60 : x
  2. Step 2: Convert to fraction form
    528,796,821.60/792,911,797.20 = 221,742,021.60/x
  3. Step 3: Cross multiply
    528,796,821.60x = 792,911,797.20 × 221,742,021.60
  4. Step 4: Simplify right side
    528,796,821.60x = 175,821,864,861,617,216
  5. Step 5: Solve for x
    x = 175,821,864,861,617,216/528,796,821.60
  6. Step 6: Final answer
    x = 332,494,178.63

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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.