Home / 426,688,305,254.20-639,776,861,489.73-135,807,255,964.30

Finding the Fourth Proportional to 426,688,305,254.20, 639,776,861,489.73 and 135,807,255,964.30

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Solution

The fourth proportional to 426,688,305,254.20, 639,776,861,489.73 and 135,807,255,964.30 is: 203,629,532,186.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,688,305,254.20 : 639,776,861,489.73 = 135,807,255,964.30 : x
  2. Step 2: Convert to fraction form
    426,688,305,254.20/639,776,861,489.73 = 135,807,255,964.30/x
  3. Step 3: Cross multiply
    426,688,305,254.20x = 639,776,861,489.73 × 135,807,255,964.30
  4. Step 4: Simplify right side
    426,688,305,254.20x = 86,886,339,988,372,274,020,352
  5. Step 5: Solve for x
    x = 86,886,339,988,372,274,020,352/426,688,305,254.20
  6. Step 6: Final answer
    x = 203,629,532,186.52

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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.