Home / 878,174,984.13-1,317,289,769.95-325,614,912.45

Finding the Fourth Proportional to 878,174,984.13, 1,317,289,769.95 and 325,614,912.45

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Solution

The fourth proportional to 878,174,984.13, 1,317,289,769.95 and 325,614,912.45 is: 488,432,488.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,174,984.13 : 1,317,289,769.95 = 325,614,912.45 : x
  2. Step 2: Convert to fraction form
    878,174,984.13/1,317,289,769.95 = 325,614,912.45/x
  3. Step 3: Cross multiply
    878,174,984.13x = 1,317,289,769.95 × 325,614,912.45
  4. Step 4: Simplify right side
    878,174,984.13x = 428,929,193,113,549,888
  5. Step 5: Solve for x
    x = 428,929,193,113,549,888/878,174,984.13
  6. Step 6: Final answer
    x = 488,432,488.81

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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.