Home / 689,535,515.73-951,579,199.91-376,289,920.15

Finding the Fourth Proportional to 689,535,515.73, 951,579,199.91 and 376,289,920.15

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Solution

The fourth proportional to 689,535,515.73, 951,579,199.91 and 376,289,920.15 is: 519,291,106.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,535,515.73 : 951,579,199.91 = 376,289,920.15 : x
  2. Step 2: Convert to fraction form
    689,535,515.73/951,579,199.91 = 376,289,920.15/x
  3. Step 3: Cross multiply
    689,535,515.73x = 951,579,199.91 × 376,289,920.15
  4. Step 4: Simplify right side
    689,535,515.73x = 358,069,661,150,534,720
  5. Step 5: Solve for x
    x = 358,069,661,150,534,720/689,535,515.73
  6. Step 6: Final answer
    x = 519,291,106.81

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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.