Home / 405,510,467.80-607,071,308.10-381,888,016.60

Finding the Fourth Proportional to 405,510,467.80, 607,071,308.10 and 381,888,016.60

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Solution

The fourth proportional to 405,510,467.80, 607,071,308.10 and 381,888,016.60 is: 571,707,209.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,510,467.80 : 607,071,308.10 = 381,888,016.60 : x
  2. Step 2: Convert to fraction form
    405,510,467.80/607,071,308.10 = 381,888,016.60/x
  3. Step 3: Cross multiply
    405,510,467.80x = 607,071,308.10 × 381,888,016.60
  4. Step 4: Simplify right side
    405,510,467.80x = 231,833,257,785,076,544
  5. Step 5: Solve for x
    x = 231,833,257,785,076,544/405,510,467.80
  6. Step 6: Final answer
    x = 571,707,209.05

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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.