Home / 529,097,077.28-730,200,491.42-290,984,221.50

Finding the Fourth Proportional to 529,097,077.28, 730,200,491.42 and 290,984,221.50

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Solution

The fourth proportional to 529,097,077.28, 730,200,491.42 and 290,984,221.50 is: 401,583,812.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,097,077.28 : 730,200,491.42 = 290,984,221.50 : x
  2. Step 2: Convert to fraction form
    529,097,077.28/730,200,491.42 = 290,984,221.50/x
  3. Step 3: Cross multiply
    529,097,077.28x = 730,200,491.42 × 290,984,221.50
  4. Step 4: Simplify right side
    529,097,077.28x = 212,476,821,533,311,200
  5. Step 5: Solve for x
    x = 212,476,821,533,311,200/529,097,077.28
  6. Step 6: Final answer
    x = 401,583,812.61

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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.