Home / 290,323,458.80-434,981,303.40-188,034,844.40

Finding the Fourth Proportional to 290,323,458.80, 434,981,303.40 and 188,034,844.40

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Solution

The fourth proportional to 290,323,458.80, 434,981,303.40 and 188,034,844.40 is: 281,725,913.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,323,458.80 : 434,981,303.40 = 188,034,844.40 : x
  2. Step 2: Convert to fraction form
    290,323,458.80/434,981,303.40 = 188,034,844.40/x
  3. Step 3: Cross multiply
    290,323,458.80x = 434,981,303.40 × 188,034,844.40
  4. Step 4: Simplify right side
    290,323,458.80x = 81,791,641,701,728,192
  5. Step 5: Solve for x
    x = 81,791,641,701,728,192/290,323,458.80
  6. Step 6: Final answer
    x = 281,725,913.71

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.