Home / 712,074,137.42-982,649,303.54-394,533,225.32

Finding the Fourth Proportional to 712,074,137.42, 982,649,303.54 and 394,533,225.32

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Solution

The fourth proportional to 712,074,137.42, 982,649,303.54 and 394,533,225.32 is: 544,448,644.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,074,137.42 : 982,649,303.54 = 394,533,225.32 : x
  2. Step 2: Convert to fraction form
    712,074,137.42/982,649,303.54 = 394,533,225.32/x
  3. Step 3: Cross multiply
    712,074,137.42x = 982,649,303.54 × 394,533,225.32
  4. Step 4: Simplify right side
    712,074,137.42x = 387,687,799,087,530,880
  5. Step 5: Solve for x
    x = 387,687,799,087,530,880/712,074,137.42
  6. Step 6: Final answer
    x = 544,448,644.76

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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.