Home / 18,405,079.07-25,399,186.81-10,145,460.47

Finding the Fourth Proportional to 18,405,079.07, 25,399,186.81 and 10,145,460.47

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Solution

The fourth proportional to 18,405,079.07, 25,399,186.81 and 10,145,460.47 is: 14,000,833.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,405,079.07 : 25,399,186.81 = 10,145,460.47 : x
  2. Step 2: Convert to fraction form
    18,405,079.07/25,399,186.81 = 10,145,460.47/x
  3. Step 3: Cross multiply
    18,405,079.07x = 25,399,186.81 × 10,145,460.47
  4. Step 4: Simplify right side
    18,405,079.07x = 257,686,445,598,640.81
  5. Step 5: Solve for x
    x = 257,686,445,598,640.81/18,405,079.07
  6. Step 6: Final answer
    x = 14,000,833.39

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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.