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Finding the Third Proportional to 64,720,134 and 139,045,568.63

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Solution

The third proportional to 64,720,134 and 139,045,568.63 is: 298,727,288.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,720,134 : 139,045,568.63 = 139,045,568.63 : x
  2. Step 2: Convert to fraction form
    64,720,134/139,045,568.63 = 139,045,568.63/x
  3. Step 3: Cross multiply
    64,720,134x = 139,045,568.63 × 139,045,568.63
  4. Step 4: Simplify right side
    64,720,134x = 19,333,670,154,249,584
  5. Step 5: Solve for x
    x = 19,333,670,154,249,584/64,720,134
  6. Step 6: Final answer
    x = 298,727,288.70

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.