Home / 320,983,923.70-442,950,320.72-188,833,430.54

Finding the Fourth Proportional to 320,983,923.70, 442,950,320.72 and 188,833,430.54

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Solution

The fourth proportional to 320,983,923.70, 442,950,320.72 and 188,833,430.54 is: 260,585,725.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,983,923.70 : 442,950,320.72 = 188,833,430.54 : x
  2. Step 2: Convert to fraction form
    320,983,923.70/442,950,320.72 = 188,833,430.54/x
  3. Step 3: Cross multiply
    320,983,923.70x = 442,950,320.72 × 188,833,430.54
  4. Step 4: Simplify right side
    320,983,923.70x = 83,643,828,620,350,848
  5. Step 5: Solve for x
    x = 83,643,828,620,350,848/320,983,923.70
  6. Step 6: Final answer
    x = 260,585,725.47

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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.