Home / 13,507,004.49-18,639,672.09-7,312,051.11

Finding the Fourth Proportional to 13,507,004.49, 18,639,672.09 and 7,312,051.11

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Solution

The fourth proportional to 13,507,004.49, 18,639,672.09 and 7,312,051.11 is: 10,090,633.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,507,004.49 : 18,639,672.09 = 7,312,051.11 : x
  2. Step 2: Convert to fraction form
    13,507,004.49/18,639,672.09 = 7,312,051.11/x
  3. Step 3: Cross multiply
    13,507,004.49x = 18,639,672.09 × 7,312,051.11
  4. Step 4: Simplify right side
    13,507,004.49x = 136,294,234,995,720.53
  5. Step 5: Solve for x
    x = 136,294,234,995,720.53/13,507,004.49
  6. Step 6: Final answer
    x = 10,090,633.72

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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.