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Finding the Fourth Proportional to 161,661,143.60, 242,573,622.60 and 70,785,623.60

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Solution

The fourth proportional to 161,661,143.60, 242,573,622.60 and 70,785,623.60 is: 106,214,299.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,661,143.60 : 242,573,622.60 = 70,785,623.60 : x
  2. Step 2: Convert to fraction form
    161,661,143.60/242,573,622.60 = 70,785,623.60/x
  3. Step 3: Cross multiply
    161,661,143.60x = 242,573,622.60 × 70,785,623.60
  4. Step 4: Simplify right side
    161,661,143.60x = 17,170,725,144,652,052
  5. Step 5: Solve for x
    x = 17,170,725,144,652,052/161,661,143.60
  6. Step 6: Final answer
    x = 106,214,299.63

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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.