Home / 358,067,654.10-493,952,488.74-209,291,576.40

Finding the Fourth Proportional to 358,067,654.10, 493,952,488.74 and 209,291,576.40

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Solution

The fourth proportional to 358,067,654.10, 493,952,488.74 and 209,291,576.40 is: 288,716,654.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,067,654.10 : 493,952,488.74 = 209,291,576.40 : x
  2. Step 2: Convert to fraction form
    358,067,654.10/493,952,488.74 = 209,291,576.40/x
  3. Step 3: Cross multiply
    358,067,654.10x = 493,952,488.74 × 209,291,576.40
  4. Step 4: Simplify right side
    358,067,654.10x = 103,380,095,035,097,856
  5. Step 5: Solve for x
    x = 103,380,095,035,097,856/358,067,654.10
  6. Step 6: Final answer
    x = 288,716,654.11

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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.