Home / 128,203,150.55-176,920,504.09-69,465,769.34

Finding the Fourth Proportional to 128,203,150.55, 176,920,504.09 and 69,465,769.34

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Solution

The fourth proportional to 128,203,150.55, 176,920,504.09 and 69,465,769.34 is: 95,862,846.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,203,150.55 : 176,920,504.09 = 69,465,769.34 : x
  2. Step 2: Convert to fraction form
    128,203,150.55/176,920,504.09 = 69,465,769.34/x
  3. Step 3: Cross multiply
    128,203,150.55x = 176,920,504.09 × 69,465,769.34
  4. Step 4: Simplify right side
    128,203,150.55x = 12,289,918,927,574,198
  5. Step 5: Solve for x
    x = 12,289,918,927,574,198/128,203,150.55
  6. Step 6: Final answer
    x = 95,862,846.39

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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.