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Finding the Third Proportional to 74,313,303 and 155,402,478

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Solution

The third proportional to 74,313,303 and 155,402,478 is: 324,974,522.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,313,303 : 155,402,478 = 155,402,478 : x
  2. Step 2: Convert to fraction form
    74,313,303/155,402,478 = 155,402,478/x
  3. Step 3: Cross multiply
    74,313,303x = 155,402,478 × 155,402,478
  4. Step 4: Simplify right side
    74,313,303x = 24,149,930,168,540,484
  5. Step 5: Solve for x
    x = 24,149,930,168,540,484/74,313,303
  6. Step 6: Final answer
    x = 324,974,522.64

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Why These Related Problems?

These problems maintain the same ratio (2.09) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.