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Finding the Fourth Proportional to 161,143,274.40, 241,714,911.60 and 139,224,285.60

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Solution

The fourth proportional to 161,143,274.40, 241,714,911.60 and 139,224,285.60 is: 208,836,428.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,143,274.40 : 241,714,911.60 = 139,224,285.60 : x
  2. Step 2: Convert to fraction form
    161,143,274.40/241,714,911.60 = 139,224,285.60/x
  3. Step 3: Cross multiply
    161,143,274.40x = 241,714,911.60 × 139,224,285.60
  4. Step 4: Simplify right side
    161,143,274.40x = 33,652,585,886,377,152
  5. Step 5: Solve for x
    x = 33,652,585,886,377,152/161,143,274.40
  6. Step 6: Final answer
    x = 208,836,428.40

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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.