Home / 389,352,086.34-537,305,835.72-210,735,944.16

Finding the Fourth Proportional to 389,352,086.34, 537,305,835.72 and 210,735,944.16

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Solution

The fourth proportional to 389,352,086.34, 537,305,835.72 and 210,735,944.16 is: 290,815,579.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,352,086.34 : 537,305,835.72 = 210,735,944.16 : x
  2. Step 2: Convert to fraction form
    389,352,086.34/537,305,835.72 = 210,735,944.16/x
  3. Step 3: Cross multiply
    389,352,086.34x = 537,305,835.72 × 210,735,944.16
  4. Step 4: Simplify right side
    389,352,086.34x = 113,229,652,593,132,064
  5. Step 5: Solve for x
    x = 113,229,652,593,132,064/389,352,086.34
  6. Step 6: Final answer
    x = 290,815,579.43

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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.