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Finding the Third Proportional to 66,248,644 and 144,779,480

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Solution

The third proportional to 66,248,644 and 144,779,480 is: 316,400,405.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,248,644 : 144,779,480 = 144,779,480 : x
  2. Step 2: Convert to fraction form
    66,248,644/144,779,480 = 144,779,480/x
  3. Step 3: Cross multiply
    66,248,644x = 144,779,480 × 144,779,480
  4. Step 4: Simplify right side
    66,248,644x = 20,961,097,829,070,400
  5. Step 5: Solve for x
    x = 20,961,097,829,070,400/66,248,644
  6. Step 6: Final answer
    x = 316,400,405.56

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.