Home / 646,821,429.60-970,232,144.40-355,576,015.20

Finding the Fourth Proportional to 646,821,429.60, 970,232,144.40 and 355,576,015.20

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Solution

The fourth proportional to 646,821,429.60, 970,232,144.40 and 355,576,015.20 is: 533,364,022.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,821,429.60 : 970,232,144.40 = 355,576,015.20 : x
  2. Step 2: Convert to fraction form
    646,821,429.60/970,232,144.40 = 355,576,015.20/x
  3. Step 3: Cross multiply
    646,821,429.60x = 970,232,144.40 × 355,576,015.20
  4. Step 4: Simplify right side
    646,821,429.60x = 344,991,279,724,702,976
  5. Step 5: Solve for x
    x = 344,991,279,724,702,976/646,821,429.60
  6. Step 6: Final answer
    x = 533,364,022.80

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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.