Home / 290,325,305.80-435,487,958.70-193,579,424.20

Finding the Fourth Proportional to 290,325,305.80, 435,487,958.70 and 193,579,424.20

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Solution

The fourth proportional to 290,325,305.80, 435,487,958.70 and 193,579,424.20 is: 290,369,136.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,325,305.80 : 435,487,958.70 = 193,579,424.20 : x
  2. Step 2: Convert to fraction form
    290,325,305.80/435,487,958.70 = 193,579,424.20/x
  3. Step 3: Cross multiply
    290,325,305.80x = 435,487,958.70 × 193,579,424.20
  4. Step 4: Simplify right side
    290,325,305.80x = 84,301,508,291,179,376
  5. Step 5: Solve for x
    x = 84,301,508,291,179,376/290,325,305.80
  6. Step 6: Final answer
    x = 290,369,136.30

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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.