Home / 384,476,496.57-530,580,112.81-208,264,491.92

Finding the Fourth Proportional to 384,476,496.57, 530,580,112.81 and 208,264,491.92

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Solution

The fourth proportional to 384,476,496.57, 530,580,112.81 and 208,264,491.92 is: 287,406,378.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,476,496.57 : 530,580,112.81 = 208,264,491.92 : x
  2. Step 2: Convert to fraction form
    384,476,496.57/530,580,112.81 = 208,264,491.92/x
  3. Step 3: Cross multiply
    384,476,496.57x = 530,580,112.81 × 208,264,491.92
  4. Step 4: Simplify right side
    384,476,496.57x = 110,500,997,618,036,736
  5. Step 5: Solve for x
    x = 110,500,997,618,036,736/384,476,496.57
  6. Step 6: Final answer
    x = 287,406,378.81

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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.