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Finding the Third Proportional to 642,881,230.50 and 1,395,357,405

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Solution

The third proportional to 642,881,230.50 and 1,395,357,405 is: 3,028,587,856.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,881,230.50 : 1,395,357,405 = 1,395,357,405 : x
  2. Step 2: Convert to fraction form
    642,881,230.50/1,395,357,405 = 1,395,357,405/x
  3. Step 3: Cross multiply
    642,881,230.50x = 1,395,357,405 × 1,395,357,405
  4. Step 4: Simplify right side
    642,881,230.50x = 1,947,022,287,688,334,080
  5. Step 5: Solve for x
    x = 1,947,022,287,688,334,080/642,881,230.50
  6. Step 6: Final answer
    x = 3,028,587,856.23

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.