Home / 1,181,954,420.40-1,772,931,630.60-320,311,412.40

Finding the Fourth Proportional to 1,181,954,420.40, 1,772,931,630.60 and 320,311,412.40

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Solution

The fourth proportional to 1,181,954,420.40, 1,772,931,630.60 and 320,311,412.40 is: 480,467,118.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,181,954,420.40 : 1,772,931,630.60 = 320,311,412.40 : x
  2. Step 2: Convert to fraction form
    1,181,954,420.40/1,772,931,630.60 = 320,311,412.40/x
  3. Step 3: Cross multiply
    1,181,954,420.40x = 1,772,931,630.60 × 320,311,412.40
  4. Step 4: Simplify right side
    1,181,954,420.40x = 567,890,234,686,120,960
  5. Step 5: Solve for x
    x = 567,890,234,686,120,960/1,181,954,420.40
  6. Step 6: Final answer
    x = 480,467,118.60

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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.