Home / 213,533,920.80-320,300,881.20-177,821,085.60

Finding the Fourth Proportional to 213,533,920.80, 320,300,881.20 and 177,821,085.60

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Solution

The fourth proportional to 213,533,920.80, 320,300,881.20 and 177,821,085.60 is: 266,731,628.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,533,920.80 : 320,300,881.20 = 177,821,085.60 : x
  2. Step 2: Convert to fraction form
    213,533,920.80/320,300,881.20 = 177,821,085.60/x
  3. Step 3: Cross multiply
    213,533,920.80x = 320,300,881.20 × 177,821,085.60
  4. Step 4: Simplify right side
    213,533,920.80x = 56,956,250,413,620,624
  5. Step 5: Solve for x
    x = 56,956,250,413,620,624/213,533,920.80
  6. Step 6: Final answer
    x = 266,731,628.40

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1.5x scale

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.