Home / 298,909,590.12-412,444,149.18-173,433,020.82

Finding the Fourth Proportional to 298,909,590.12, 412,444,149.18 and 173,433,020.82

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Solution

The fourth proportional to 298,909,590.12, 412,444,149.18 and 173,433,020.82 is: 239,307,928.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,909,590.12 : 412,444,149.18 = 173,433,020.82 : x
  2. Step 2: Convert to fraction form
    298,909,590.12/412,444,149.18 = 173,433,020.82/x
  3. Step 3: Cross multiply
    298,909,590.12x = 412,444,149.18 × 173,433,020.82
  4. Step 4: Simplify right side
    298,909,590.12x = 71,531,434,711,822,128
  5. Step 5: Solve for x
    x = 71,531,434,711,822,128/298,909,590.12
  6. Step 6: Final answer
    x = 239,307,928.14

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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.