Home / 488,236,461.44-673,686,448.04-287,462,528.76

Finding the Fourth Proportional to 488,236,461.44, 673,686,448.04 and 287,462,528.76

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Solution

The fourth proportional to 488,236,461.44, 673,686,448.04 and 287,462,528.76 is: 396,651,264.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,236,461.44 : 673,686,448.04 = 287,462,528.76 : x
  2. Step 2: Convert to fraction form
    488,236,461.44/673,686,448.04 = 287,462,528.76/x
  3. Step 3: Cross multiply
    488,236,461.44x = 673,686,448.04 × 287,462,528.76
  4. Step 4: Simplify right side
    488,236,461.44x = 193,659,609,944,379,616
  5. Step 5: Solve for x
    x = 193,659,609,944,379,616/488,236,461.44
  6. Step 6: Final answer
    x = 396,651,264.79

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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.