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Finding the Third Proportional to 66,248,642 and 144,779,476

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Solution

The third proportional to 66,248,642 and 144,779,476 is: 316,400,397.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,248,642 : 144,779,476 = 144,779,476 : x
  2. Step 2: Convert to fraction form
    66,248,642/144,779,476 = 144,779,476/x
  3. Step 3: Cross multiply
    66,248,642x = 144,779,476 × 144,779,476
  4. Step 4: Simplify right side
    66,248,642x = 20,961,096,670,834,576
  5. Step 5: Solve for x
    x = 20,961,096,670,834,576/66,248,642
  6. Step 6: Final answer
    x = 316,400,397.62

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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.