Home / 421,872,005.58-632,822,359.68-200,429,060.60

Finding the Fourth Proportional to 421,872,005.58, 632,822,359.68 and 200,429,060.60

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Solution

The fourth proportional to 421,872,005.58, 632,822,359.68 and 200,429,060.60 is: 300,650,409.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,872,005.58 : 632,822,359.68 = 200,429,060.60 : x
  2. Step 2: Convert to fraction form
    421,872,005.58/632,822,359.68 = 200,429,060.60/x
  3. Step 3: Cross multiply
    421,872,005.58x = 632,822,359.68 × 200,429,060.60
  4. Step 4: Simplify right side
    421,872,005.58x = 126,835,991,077,337,696
  5. Step 5: Solve for x
    x = 126,835,991,077,337,696/421,872,005.58
  6. Step 6: Final answer
    x = 300,650,409.13

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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.