Home / 200,809,942.30-301,214,913.45-139,587,939.10

Finding the Fourth Proportional to 200,809,942.30, 301,214,913.45 and 139,587,939.10

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Solution

The fourth proportional to 200,809,942.30, 301,214,913.45 and 139,587,939.10 is: 209,381,908.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,809,942.30 : 301,214,913.45 = 139,587,939.10 : x
  2. Step 2: Convert to fraction form
    200,809,942.30/301,214,913.45 = 139,587,939.10/x
  3. Step 3: Cross multiply
    200,809,942.30x = 301,214,913.45 × 139,587,939.10
  4. Step 4: Simplify right side
    200,809,942.30x = 42,045,968,994,670,368
  5. Step 5: Solve for x
    x = 42,045,968,994,670,368/200,809,942.30
  6. Step 6: Final answer
    x = 209,381,908.65

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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.