Home / 289,137,692,381.68-398,589,483,430.32-202,059,909,751.60

Finding the Fourth Proportional to 289,137,692,381.68, 398,589,483,430.32 and 202,059,909,751.60

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Solution

The fourth proportional to 289,137,692,381.68, 398,589,483,430.32 and 202,059,909,751.60 is: 278,548,792,398.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,137,692,381.68 : 398,589,483,430.32 = 202,059,909,751.60 : x
  2. Step 2: Convert to fraction form
    289,137,692,381.68/398,589,483,430.32 = 202,059,909,751.60/x
  3. Step 3: Cross multiply
    289,137,692,381.68x = 398,589,483,430.32 × 202,059,909,751.60
  4. Step 4: Simplify right side
    289,137,692,381.68x = 80,538,955,049,867,327,569,920
  5. Step 5: Solve for x
    x = 80,538,955,049,867,327,569,920/289,137,692,381.68
  6. Step 6: Final answer
    x = 278,548,792,398.71

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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.