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Finding the Third Proportional to 429,953,316 and 648,493,330

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Solution

The third proportional to 429,953,316 and 648,493,330 is: 978,114,561.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    429,953,316 : 648,493,330 = 648,493,330 : x
  2. Step 2: Convert to fraction form
    429,953,316/648,493,330 = 648,493,330/x
  3. Step 3: Cross multiply
    429,953,316x = 648,493,330 × 648,493,330
  4. Step 4: Simplify right side
    429,953,316x = 420,543,599,054,488,896
  5. Step 5: Solve for x
    x = 420,543,599,054,488,896/429,953,316
  6. Step 6: Final answer
    x = 978,114,561.29

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These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.