Home / 426,169,631.60-639,254,447.40-196,587,119.60

Finding the Fourth Proportional to 426,169,631.60, 639,254,447.40 and 196,587,119.60

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Solution

The fourth proportional to 426,169,631.60, 639,254,447.40 and 196,587,119.60 is: 294,880,679.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,169,631.60 : 639,254,447.40 = 196,587,119.60 : x
  2. Step 2: Convert to fraction form
    426,169,631.60/639,254,447.40 = 196,587,119.60/x
  3. Step 3: Cross multiply
    426,169,631.60x = 639,254,447.40 × 196,587,119.60
  4. Step 4: Simplify right side
    426,169,631.60x = 125,669,190,505,855,696
  5. Step 5: Solve for x
    x = 125,669,190,505,855,696/426,169,631.60
  6. Step 6: Final answer
    x = 294,880,679.40

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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.