Home / 510,208,291.40-704,109,739.03-287,204,362.88

Finding the Fourth Proportional to 510,208,291.40, 704,109,739.03 and 287,204,362.88

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Solution

The fourth proportional to 510,208,291.40, 704,109,739.03 and 287,204,362.88 is: 396,354,572.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    510,208,291.40 : 704,109,739.03 = 287,204,362.88 : x
  2. Step 2: Convert to fraction form
    510,208,291.40/704,109,739.03 = 287,204,362.88/x
  3. Step 3: Cross multiply
    510,208,291.40x = 704,109,739.03 × 287,204,362.88
  4. Step 4: Simplify right side
    510,208,291.40x = 202,223,388,991,475,680
  5. Step 5: Solve for x
    x = 202,223,388,991,475,680/510,208,291.40
  6. Step 6: Final answer
    x = 396,354,572.05

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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.