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Finding the Third Proportional to 390,628,148 and 834,978,552.50

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Solution

The third proportional to 390,628,148 and 834,978,552.50 is: 1,784,789,925.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    390,628,148 : 834,978,552.50 = 834,978,552.50 : x
  2. Step 2: Convert to fraction form
    390,628,148/834,978,552.50 = 834,978,552.50/x
  3. Step 3: Cross multiply
    390,628,148x = 834,978,552.50 × 834,978,552.50
  4. Step 4: Simplify right side
    390,628,148x = 697,189,183,134,995,200
  5. Step 5: Solve for x
    x = 697,189,183,134,995,200/390,628,148
  6. Step 6: Final answer
    x = 1,784,789,925.42

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.