Home / 170,864,255.45-235,780,431.36-100,302,730.71

Finding the Fourth Proportional to 170,864,255.45, 235,780,431.36 and 100,302,730.71

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Solution

The fourth proportional to 170,864,255.45, 235,780,431.36 and 100,302,730.71 is: 138,410,582.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,864,255.45 : 235,780,431.36 = 100,302,730.71 : x
  2. Step 2: Convert to fraction form
    170,864,255.45/235,780,431.36 = 100,302,730.71/x
  3. Step 3: Cross multiply
    170,864,255.45x = 235,780,431.36 × 100,302,730.71
  4. Step 4: Simplify right side
    170,864,255.45x = 23,649,421,113,389,720
  5. Step 5: Solve for x
    x = 23,649,421,113,389,720/170,864,255.45
  6. Step 6: Final answer
    x = 138,410,582.43

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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.