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Finding the Third Proportional to 66,306,724.50 and 139,484,586

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Solution

The third proportional to 66,306,724.50 and 139,484,586 is: 293,423,478.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,306,724.50 : 139,484,586 = 139,484,586 : x
  2. Step 2: Convert to fraction form
    66,306,724.50/139,484,586 = 139,484,586/x
  3. Step 3: Cross multiply
    66,306,724.50x = 139,484,586 × 139,484,586
  4. Step 4: Simplify right side
    66,306,724.50x = 19,455,949,731,591,396
  5. Step 5: Solve for x
    x = 19,455,949,731,591,396/66,306,724.50
  6. Step 6: Final answer
    x = 293,423,478.21

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Why These Related Problems?

These problems maintain the same ratio (2.10) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.