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Finding the Third Proportional to 72,072,730 and 155,482,814

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Solution

The third proportional to 72,072,730 and 155,482,814 is: 335,423,751.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,072,730 : 155,482,814 = 155,482,814 : x
  2. Step 2: Convert to fraction form
    72,072,730/155,482,814 = 155,482,814/x
  3. Step 3: Cross multiply
    72,072,730x = 155,482,814 × 155,482,814
  4. Step 4: Simplify right side
    72,072,730x = 24,174,905,449,358,596
  5. Step 5: Solve for x
    x = 24,174,905,449,358,596/72,072,730
  6. Step 6: Final answer
    x = 335,423,751.11

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.