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Finding the Fourth Proportional to 170,809,213.60, 256,213,820.40 and 162,448,458.40

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Solution

The fourth proportional to 170,809,213.60, 256,213,820.40 and 162,448,458.40 is: 243,672,687.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,809,213.60 : 256,213,820.40 = 162,448,458.40 : x
  2. Step 2: Convert to fraction form
    170,809,213.60/256,213,820.40 = 162,448,458.40/x
  3. Step 3: Cross multiply
    170,809,213.60x = 256,213,820.40 × 162,448,458.40
  4. Step 4: Simplify right side
    170,809,213.60x = 41,621,540,144,754,472
  5. Step 5: Solve for x
    x = 41,621,540,144,754,472/170,809,213.60
  6. Step 6: Final answer
    x = 243,672,687.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.