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Finding the Third Proportional to 208,562,931 and 315,528,696

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Solution

The third proportional to 208,562,931 and 315,528,696 is: 477,354,041.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,562,931 : 315,528,696 = 315,528,696 : x
  2. Step 2: Convert to fraction form
    208,562,931/315,528,696 = 315,528,696/x
  3. Step 3: Cross multiply
    208,562,931x = 315,528,696 × 315,528,696
  4. Step 4: Simplify right side
    208,562,931x = 99,558,357,999,460,416
  5. Step 5: Solve for x
    x = 99,558,357,999,460,416/208,562,931
  6. Step 6: Final answer
    x = 477,354,041.40

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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.