Home / 128,257,379.60-192,386,069.40-37,383,933.20

Finding the Fourth Proportional to 128,257,379.60, 192,386,069.40 and 37,383,933.20

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Solution

The fourth proportional to 128,257,379.60, 192,386,069.40 and 37,383,933.20 is: 56,075,899.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,257,379.60 : 192,386,069.40 = 37,383,933.20 : x
  2. Step 2: Convert to fraction form
    128,257,379.60/192,386,069.40 = 37,383,933.20/x
  3. Step 3: Cross multiply
    128,257,379.60x = 192,386,069.40 × 37,383,933.20
  4. Step 4: Simplify right side
    128,257,379.60x = 7,192,147,967,060,165
  5. Step 5: Solve for x
    x = 7,192,147,967,060,165/128,257,379.60
  6. Step 6: Final answer
    x = 56,075,899.80

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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.