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Finding the Third Proportional to 66,090,136.50 and 143,159,985

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Solution

The third proportional to 66,090,136.50 and 143,159,985 is: 310,103,479.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,090,136.50 : 143,159,985 = 143,159,985 : x
  2. Step 2: Convert to fraction form
    66,090,136.50/143,159,985 = 143,159,985/x
  3. Step 3: Cross multiply
    66,090,136.50x = 143,159,985 × 143,159,985
  4. Step 4: Simplify right side
    66,090,136.50x = 20,494,781,305,200,224
  5. Step 5: Solve for x
    x = 20,494,781,305,200,224/66,090,136.50
  6. Step 6: Final answer
    x = 310,103,479.74

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.