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Finding the Third Proportional to 30,291,387 and 66,065,500.50

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Solution

The third proportional to 30,291,387 and 66,065,500.50 is: 144,088,824.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,291,387 : 66,065,500.50 = 66,065,500.50 : x
  2. Step 2: Convert to fraction form
    30,291,387/66,065,500.50 = 66,065,500.50/x
  3. Step 3: Cross multiply
    30,291,387x = 66,065,500.50 × 66,065,500.50
  4. Step 4: Simplify right side
    30,291,387x = 4,364,650,356,315,500
  5. Step 5: Solve for x
    x = 4,364,650,356,315,500/30,291,387
  6. Step 6: Final answer
    x = 144,088,824.86

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.