Home / 163,417,012.08-225,515,421.60-90,079,378.80

Finding the Fourth Proportional to 163,417,012.08, 225,515,421.60 and 90,079,378.80

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Solution

The fourth proportional to 163,417,012.08, 225,515,421.60 and 90,079,378.80 is: 124,309,512.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,417,012.08 : 225,515,421.60 = 90,079,378.80 : x
  2. Step 2: Convert to fraction form
    163,417,012.08/225,515,421.60 = 90,079,378.80/x
  3. Step 3: Cross multiply
    163,417,012.08x = 225,515,421.60 × 90,079,378.80
  4. Step 4: Simplify right side
    163,417,012.08x = 20,314,289,087,548,100
  5. Step 5: Solve for x
    x = 20,314,289,087,548,100/163,417,012.08
  6. Step 6: Final answer
    x = 124,309,512.39

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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.