Home / 13,507,001.55-18,639,667.94-7,312,048.11

Finding the Fourth Proportional to 13,507,001.55, 18,639,667.94 and 7,312,048.11

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Solution

The fourth proportional to 13,507,001.55, 18,639,667.94 and 7,312,048.11 is: 10,090,629.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,507,001.55 : 18,639,667.94 = 7,312,048.11 : x
  2. Step 2: Convert to fraction form
    13,507,001.55/18,639,667.94 = 7,312,048.11/x
  3. Step 3: Cross multiply
    13,507,001.55x = 18,639,667.94 × 7,312,048.11
  4. Step 4: Simplify right side
    13,507,001.55x = 136,294,148,695,144.34
  5. Step 5: Solve for x
    x = 136,294,148,695,144.34/13,507,001.55
  6. Step 6: Final answer
    x = 10,090,629.53

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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.