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Finding the Third Proportional to 208,562,937 and 315,528,705

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Solution

The third proportional to 208,562,937 and 315,528,705 is: 477,354,054.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,562,937 : 315,528,705 = 315,528,705 : x
  2. Step 2: Convert to fraction form
    208,562,937/315,528,705 = 315,528,705/x
  3. Step 3: Cross multiply
    208,562,937x = 315,528,705 × 315,528,705
  4. Step 4: Simplify right side
    208,562,937x = 99,558,363,678,977,024
  5. Step 5: Solve for x
    x = 99,558,363,678,977,024/208,562,937
  6. Step 6: Final answer
    x = 477,354,054.90

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Why These Related Problems?

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