Home / 408,147,632,187.40-612,221,448,281.10-308,967,987,003.40

Finding the Fourth Proportional to 408,147,632,187.40, 612,221,448,281.10 and 308,967,987,003.40

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Solution

The fourth proportional to 408,147,632,187.40, 612,221,448,281.10 and 308,967,987,003.40 is: 463,451,980,505.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,147,632,187.40 : 612,221,448,281.10 = 308,967,987,003.40 : x
  2. Step 2: Convert to fraction form
    408,147,632,187.40/612,221,448,281.10 = 308,967,987,003.40/x
  3. Step 3: Cross multiply
    408,147,632,187.40x = 612,221,448,281.10 × 308,967,987,003.40
  4. Step 4: Simplify right side
    408,147,632,187.40x = 189,156,828,475,717,639,471,104
  5. Step 5: Solve for x
    x = 189,156,828,475,717,639,471,104/408,147,632,187.40
  6. Step 6: Final answer
    x = 463,451,980,505.10

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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.