Home / 18,171,888.18-25,077,284.16-9,912,128.22

Finding the Fourth Proportional to 18,171,888.18, 25,077,284.16 and 9,912,128.22

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Solution

The fourth proportional to 18,171,888.18, 25,077,284.16 and 9,912,128.22 is: 13,678,779.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,171,888.18 : 25,077,284.16 = 9,912,128.22 : x
  2. Step 2: Convert to fraction form
    18,171,888.18/25,077,284.16 = 9,912,128.22/x
  3. Step 3: Cross multiply
    18,171,888.18x = 25,077,284.16 × 9,912,128.22
  4. Step 4: Simplify right side
    18,171,888.18x = 248,569,256,003,295
  5. Step 5: Solve for x
    x = 248,569,256,003,295/18,171,888.18
  6. Step 6: Final answer
    x = 13,678,779.75

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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.