Home / 524,416,538.78-723,694,894.38-289,467,243.59

Finding the Fourth Proportional to 524,416,538.78, 723,694,894.38 and 289,467,243.59

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Solution

The fourth proportional to 524,416,538.78, 723,694,894.38 and 289,467,243.59 is: 399,464,835.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    524,416,538.78 : 723,694,894.38 = 289,467,243.59 : x
  2. Step 2: Convert to fraction form
    524,416,538.78/723,694,894.38 = 289,467,243.59/x
  3. Step 3: Cross multiply
    524,416,538.78x = 723,694,894.38 × 289,467,243.59
  4. Step 4: Simplify right side
    524,416,538.78x = 209,485,966,272,716,288
  5. Step 5: Solve for x
    x = 209,485,966,272,716,288/524,416,538.78
  6. Step 6: Final answer
    x = 399,464,835.27

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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.