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Finding the Third Proportional to 151,939,830 and 309,249,312

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Solution

The third proportional to 151,939,830 and 309,249,312 is: 629,427,694.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,939,830 : 309,249,312 = 309,249,312 : x
  2. Step 2: Convert to fraction form
    151,939,830/309,249,312 = 309,249,312/x
  3. Step 3: Cross multiply
    151,939,830x = 309,249,312 × 309,249,312
  4. Step 4: Simplify right side
    151,939,830x = 95,635,136,972,473,344
  5. Step 5: Solve for x
    x = 95,635,136,972,473,344/151,939,830
  6. Step 6: Final answer
    x = 629,427,694.98

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Why These Related Problems?

These problems maintain the same ratio (2.04) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.