Home / 496,479,300.77-685,141,402.58-287,756,513.24

Finding the Fourth Proportional to 496,479,300.77, 685,141,402.58 and 287,756,513.24

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Solution

The fourth proportional to 496,479,300.77, 685,141,402.58 and 287,756,513.24 is: 397,103,969.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,479,300.77 : 685,141,402.58 = 287,756,513.24 : x
  2. Step 2: Convert to fraction form
    496,479,300.77/685,141,402.58 = 287,756,513.24/x
  3. Step 3: Cross multiply
    496,479,300.77x = 685,141,402.58 × 287,756,513.24
  4. Step 4: Simplify right side
    496,479,300.77x = 197,153,901,077,919,488
  5. Step 5: Solve for x
    x = 197,153,901,077,919,488/496,479,300.77
  6. Step 6: Final answer
    x = 397,103,969.44

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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.