Home / 509,398,271.54-702,965,388.98-286,380,947.27

Finding the Fourth Proportional to 509,398,271.54, 702,965,388.98 and 286,380,947.27

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Solution

The fourth proportional to 509,398,271.54, 702,965,388.98 and 286,380,947.27 is: 395,203,331.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,398,271.54 : 702,965,388.98 = 286,380,947.27 : x
  2. Step 2: Convert to fraction form
    509,398,271.54/702,965,388.98 = 286,380,947.27/x
  3. Step 3: Cross multiply
    509,398,271.54x = 702,965,388.98 × 286,380,947.27
  4. Step 4: Simplify right side
    509,398,271.54x = 201,315,893,992,879,744
  5. Step 5: Solve for x
    x = 201,315,893,992,879,744/509,398,271.54
  6. Step 6: Final answer
    x = 395,203,331.54

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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.