Home / 317,742,737.72-438,603,922.78-238,586,463.90

Finding the Fourth Proportional to 317,742,737.72, 438,603,922.78 and 238,586,463.90

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Solution

The fourth proportional to 317,742,737.72, 438,603,922.78 and 238,586,463.90 is: 329,338,633.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,742,737.72 : 438,603,922.78 = 238,586,463.90 : x
  2. Step 2: Convert to fraction form
    317,742,737.72/438,603,922.78 = 238,586,463.90/x
  3. Step 3: Cross multiply
    317,742,737.72x = 438,603,922.78 × 238,586,463.90
  4. Step 4: Simplify right side
    317,742,737.72x = 104,644,958,988,152,384
  5. Step 5: Solve for x
    x = 104,644,958,988,152,384/317,742,737.72
  6. Step 6: Final answer
    x = 329,338,633.33

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.