Home / 85,416,768,121.20-128,125,152,181.80-57,481,394,809.20

Finding the Fourth Proportional to 85,416,768,121.20, 128,125,152,181.80 and 57,481,394,809.20

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Solution

The fourth proportional to 85,416,768,121.20, 128,125,152,181.80 and 57,481,394,809.20 is: 86,222,092,213.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,416,768,121.20 : 128,125,152,181.80 = 57,481,394,809.20 : x
  2. Step 2: Convert to fraction form
    85,416,768,121.20/128,125,152,181.80 = 57,481,394,809.20/x
  3. Step 3: Cross multiply
    85,416,768,121.20x = 128,125,152,181.80 × 57,481,394,809.20
  4. Step 4: Simplify right side
    85,416,768,121.20x = 7,364,812,457,550,878,343,168
  5. Step 5: Solve for x
    x = 7,364,812,457,550,878,343,168/85,416,768,121.20
  6. Step 6: Final answer
    x = 86,222,092,213.80

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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.