Home / 689,549,378.68-951,598,238.43-376,303,769.29

Finding the Fourth Proportional to 689,549,378.68, 951,598,238.43 and 376,303,769.29

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Solution

The fourth proportional to 689,549,378.68, 951,598,238.43 and 376,303,769.29 is: 519,310,168.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,549,378.68 : 951,598,238.43 = 376,303,769.29 : x
  2. Step 2: Convert to fraction form
    689,549,378.68/951,598,238.43 = 376,303,769.29/x
  3. Step 3: Cross multiply
    689,549,378.68x = 951,598,238.43 × 376,303,769.29
  4. Step 4: Simplify right side
    689,549,378.68x = 358,090,003,970,933,120
  5. Step 5: Solve for x
    x = 358,090,003,970,933,120/689,549,378.68
  6. Step 6: Final answer
    x = 519,310,168.41

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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.