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Finding the Third Proportional to 66,621,316 and 99,377,430

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Solution

The third proportional to 66,621,316 and 99,377,430 is: 148,238,944.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,621,316 : 99,377,430 = 99,377,430 : x
  2. Step 2: Convert to fraction form
    66,621,316/99,377,430 = 99,377,430/x
  3. Step 3: Cross multiply
    66,621,316x = 99,377,430 × 99,377,430
  4. Step 4: Simplify right side
    66,621,316x = 9,875,873,593,404,900
  5. Step 5: Solve for x
    x = 9,875,873,593,404,900/66,621,316
  6. Step 6: Final answer
    x = 148,238,944.93

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.