Home / 550,017,071.10-825,025,606.65-420,876,908.10

Finding the Fourth Proportional to 550,017,071.10, 825,025,606.65 and 420,876,908.10

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Solution

The fourth proportional to 550,017,071.10, 825,025,606.65 and 420,876,908.10 is: 631,315,362.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,017,071.10 : 825,025,606.65 = 420,876,908.10 : x
  2. Step 2: Convert to fraction form
    550,017,071.10/825,025,606.65 = 420,876,908.10/x
  3. Step 3: Cross multiply
    550,017,071.10x = 825,025,606.65 × 420,876,908.10
  4. Step 4: Simplify right side
    550,017,071.10x = 347,234,226,430,178,816
  5. Step 5: Solve for x
    x = 347,234,226,430,178,816/550,017,071.10
  6. Step 6: Final answer
    x = 631,315,362.15

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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.