Home / 678,538,000.40-1,017,807,000.60-242,331,227.60

Finding the Fourth Proportional to 678,538,000.40, 1,017,807,000.60 and 242,331,227.60

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Solution

The fourth proportional to 678,538,000.40, 1,017,807,000.60 and 242,331,227.60 is: 363,496,841.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,538,000.40 : 1,017,807,000.60 = 242,331,227.60 : x
  2. Step 2: Convert to fraction form
    678,538,000.40/1,017,807,000.60 = 242,331,227.60/x
  3. Step 3: Cross multiply
    678,538,000.40x = 1,017,807,000.60 × 242,331,227.60
  4. Step 4: Simplify right side
    678,538,000.40x = 246,646,419,915,271,936
  5. Step 5: Solve for x
    x = 246,646,419,915,271,936/678,538,000.40
  6. Step 6: Final answer
    x = 363,496,841.40

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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.