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Finding the Third Proportional to 85,688,298 and 130,540,212

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Solution

The third proportional to 85,688,298 and 130,540,212 is: 198,869,009.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,688,298 : 130,540,212 = 130,540,212 : x
  2. Step 2: Convert to fraction form
    85,688,298/130,540,212 = 130,540,212/x
  3. Step 3: Cross multiply
    85,688,298x = 130,540,212 × 130,540,212
  4. Step 4: Simplify right side
    85,688,298x = 17,040,746,949,004,944
  5. Step 5: Solve for x
    x = 17,040,746,949,004,944/85,688,298
  6. Step 6: Final answer
    x = 198,869,009.50

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.