Home / 414,069,337.20-621,104,005.80-198,547,647.60

Finding the Fourth Proportional to 414,069,337.20, 621,104,005.80 and 198,547,647.60

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Solution

The fourth proportional to 414,069,337.20, 621,104,005.80 and 198,547,647.60 is: 297,821,471.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    414,069,337.20 : 621,104,005.80 = 198,547,647.60 : x
  2. Step 2: Convert to fraction form
    414,069,337.20/621,104,005.80 = 198,547,647.60/x
  3. Step 3: Cross multiply
    414,069,337.20x = 621,104,005.80 × 198,547,647.60
  4. Step 4: Simplify right side
    414,069,337.20x = 123,318,739,266,526,736
  5. Step 5: Solve for x
    x = 123,318,739,266,526,736/414,069,337.20
  6. Step 6: Final answer
    x = 297,821,471.40

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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.