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Finding the Third Proportional to 179,478,372 and 390,403,104

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Solution

The third proportional to 179,478,372 and 390,403,104 is: 849,208,636.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,478,372 : 390,403,104 = 390,403,104 : x
  2. Step 2: Convert to fraction form
    179,478,372/390,403,104 = 390,403,104/x
  3. Step 3: Cross multiply
    179,478,372x = 390,403,104 × 390,403,104
  4. Step 4: Simplify right side
    179,478,372x = 152,414,583,612,834,816
  5. Step 5: Solve for x
    x = 152,414,583,612,834,816/179,478,372
  6. Step 6: Final answer
    x = 849,208,636.75

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.