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Finding the Third Proportional to 780,020,455,902.50 and 1,581,973,313,476.50

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Solution

The third proportional to 780,020,455,902.50 and 1,581,973,313,476.50 is: 3,208,428,119,562.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,020,455,902.50 : 1,581,973,313,476.50 = 1,581,973,313,476.50 : x
  2. Step 2: Convert to fraction form
    780,020,455,902.50/1,581,973,313,476.50 = 1,581,973,313,476.50/x
  3. Step 3: Cross multiply
    780,020,455,902.50x = 1,581,973,313,476.50 × 1,581,973,313,476.50
  4. Step 4: Simplify right side
    780,020,455,902.50x = 2,502,639,564,551,816,732,475,392
  5. Step 5: Solve for x
    x = 2,502,639,564,551,816,732,475,392/780,020,455,902.50
  6. Step 6: Final answer
    x = 3,208,428,119,562.85

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Why These Related Problems?

These problems maintain the same ratio (2.03) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.