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Finding the Fourth Proportional to 620,460,367.70, 930,448,408.52 and 270,813,376.58

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Solution

The fourth proportional to 620,460,367.70, 930,448,408.52 and 270,813,376.58 is: 406,114,376.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,460,367.70 : 930,448,408.52 = 270,813,376.58 : x
  2. Step 2: Convert to fraction form
    620,460,367.70/930,448,408.52 = 270,813,376.58/x
  3. Step 3: Cross multiply
    620,460,367.70x = 930,448,408.52 × 270,813,376.58
  4. Step 4: Simplify right side
    620,460,367.70x = 251,977,875,240,813,216
  5. Step 5: Solve for x
    x = 251,977,875,240,813,216/620,460,367.70
  6. Step 6: Final answer
    x = 406,114,376.29

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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.