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Finding the Third Proportional to 81,030,280.50 and 177,809,688

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Solution

The third proportional to 81,030,280.50 and 177,809,688 is: 390,178,646.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,030,280.50 : 177,809,688 = 177,809,688 : x
  2. Step 2: Convert to fraction form
    81,030,280.50/177,809,688 = 177,809,688/x
  3. Step 3: Cross multiply
    81,030,280.50x = 177,809,688 × 177,809,688
  4. Step 4: Simplify right side
    81,030,280.50x = 31,616,285,146,657,344
  5. Step 5: Solve for x
    x = 31,616,285,146,657,344/81,030,280.50
  6. Step 6: Final answer
    x = 390,178,646.20

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.