Home / 12,178,574.51-16,800,055.76-7,530,876.92

Finding the Fourth Proportional to 12,178,574.51, 16,800,055.76 and 7,530,876.92

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Solution

The fourth proportional to 12,178,574.51, 16,800,055.76 and 7,530,876.92 is: 10,388,666.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,178,574.51 : 16,800,055.76 = 7,530,876.92 : x
  2. Step 2: Convert to fraction form
    12,178,574.51/16,800,055.76 = 7,530,876.92/x
  3. Step 3: Cross multiply
    12,178,574.51x = 16,800,055.76 × 7,530,876.92
  4. Step 4: Simplify right side
    12,178,574.51x = 126,519,152,238,524.39
  5. Step 5: Solve for x
    x = 126,519,152,238,524.39/12,178,574.51
  6. Step 6: Final answer
    x = 10,388,666.77

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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.