Home / 13,056,663.57-18,018,359.01-7,176,939.81

Finding the Fourth Proportional to 13,056,663.57, 18,018,359.01 and 7,176,939.81

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Solution

The fourth proportional to 13,056,663.57, 18,018,359.01 and 7,176,939.81 is: 9,904,266.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,056,663.57 : 18,018,359.01 = 7,176,939.81 : x
  2. Step 2: Convert to fraction form
    13,056,663.57/18,018,359.01 = 7,176,939.81/x
  3. Step 3: Cross multiply
    13,056,663.57x = 18,018,359.01 × 7,176,939.81
  4. Step 4: Simplify right side
    13,056,663.57x = 129,316,678,089,741.19
  5. Step 5: Solve for x
    x = 129,316,678,089,741.19/13,056,663.57
  6. Step 6: Final answer
    x = 9,904,266.69

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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.