Home / 210,510,600.30-290,489,880.96-122,398,346.84

Finding the Fourth Proportional to 210,510,600.30, 290,489,880.96 and 122,398,346.84

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Solution

The fourth proportional to 210,510,600.30, 290,489,880.96 and 122,398,346.84 is: 168,901,143.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,510,600.30 : 290,489,880.96 = 122,398,346.84 : x
  2. Step 2: Convert to fraction form
    210,510,600.30/290,489,880.96 = 122,398,346.84/x
  3. Step 3: Cross multiply
    210,510,600.30x = 290,489,880.96 × 122,398,346.84
  4. Step 4: Simplify right side
    210,510,600.30x = 35,555,481,201,799,940
  5. Step 5: Solve for x
    x = 35,555,481,201,799,940/210,510,600.30
  6. Step 6: Final answer
    x = 168,901,143.94

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1.5x scale

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.