Home / 309,364,820.19-428,047,659.36-269,754,947.37

Finding the Fourth Proportional to 309,364,820.19, 428,047,659.36 and 269,754,947.37

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Solution

The fourth proportional to 309,364,820.19, 428,047,659.36 and 269,754,947.37 is: 373,242,095.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,364,820.19 : 428,047,659.36 = 269,754,947.37 : x
  2. Step 2: Convert to fraction form
    309,364,820.19/428,047,659.36 = 269,754,947.37/x
  3. Step 3: Cross multiply
    309,364,820.19x = 428,047,659.36 × 269,754,947.37
  4. Step 4: Simplify right side
    309,364,820.19x = 115,467,973,822,508,496
  5. Step 5: Solve for x
    x = 115,467,973,822,508,496/309,364,820.19
  6. Step 6: Final answer
    x = 373,242,095.70

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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.