Home / 678,155,999.40-1,017,233,999.10-241,949,226.60

Finding the Fourth Proportional to 678,155,999.40, 1,017,233,999.10 and 241,949,226.60

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Solution

The fourth proportional to 678,155,999.40, 1,017,233,999.10 and 241,949,226.60 is: 362,923,839.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,155,999.40 : 1,017,233,999.10 = 241,949,226.60 : x
  2. Step 2: Convert to fraction form
    678,155,999.40/1,017,233,999.10 = 241,949,226.60/x
  3. Step 3: Cross multiply
    678,155,999.40x = 1,017,233,999.10 × 241,949,226.60
  4. Step 4: Simplify right side
    678,155,999.40x = 246,118,979,353,470,080
  5. Step 5: Solve for x
    x = 246,118,979,353,470,080/678,155,999.40
  6. Step 6: Final answer
    x = 362,923,839.90

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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.