Home / 1,685,712,692.78-2,529,440,903.81-1,223,187,448.53

Finding the Fourth Proportional to 1,685,712,692.78, 2,529,440,903.81 and 1,223,187,448.53

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Solution

The fourth proportional to 1,685,712,692.78, 2,529,440,903.81 and 1,223,187,448.53 is: 1,835,413,815.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,685,712,692.78 : 2,529,440,903.81 = 1,223,187,448.53 : x
  2. Step 2: Convert to fraction form
    1,685,712,692.78/2,529,440,903.81 = 1,223,187,448.53/x
  3. Step 3: Cross multiply
    1,685,712,692.78x = 2,529,440,903.81 × 1,223,187,448.53
  4. Step 4: Simplify right side
    1,685,712,692.78x = 3,093,980,365,338,770,944
  5. Step 5: Solve for x
    x = 3,093,980,365,338,770,944/1,685,712,692.78
  6. Step 6: Final answer
    x = 1,835,413,815.53

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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.