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Finding the Third Proportional to 818,552,331 and 1,258,186,972.50

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Solution

The third proportional to 818,552,331 and 1,258,186,972.50 is: 1,933,944,108.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,552,331 : 1,258,186,972.50 = 1,258,186,972.50 : x
  2. Step 2: Convert to fraction form
    818,552,331/1,258,186,972.50 = 1,258,186,972.50/x
  3. Step 3: Cross multiply
    818,552,331x = 1,258,186,972.50 × 1,258,186,972.50
  4. Step 4: Simplify right side
    818,552,331x = 1,583,034,457,768,715,776
  5. Step 5: Solve for x
    x = 1,583,034,457,768,715,776/818,552,331
  6. Step 6: Final answer
    x = 1,933,944,108.17

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.