Home / 13,148,421.66-18,144,473.81-7,347,251.07

Finding the Fourth Proportional to 13,148,421.66, 18,144,473.81 and 7,347,251.07

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Solution

The fourth proportional to 13,148,421.66, 18,144,473.81 and 7,347,251.07 is: 10,139,011.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,148,421.66 : 18,144,473.81 = 7,347,251.07 : x
  2. Step 2: Convert to fraction form
    13,148,421.66/18,144,473.81 = 7,347,251.07/x
  3. Step 3: Cross multiply
    13,148,421.66x = 18,144,473.81 × 7,347,251.07
  4. Step 4: Simplify right side
    13,148,421.66x = 133,312,004,578,373.22
  5. Step 5: Solve for x
    x = 133,312,004,578,373.22/13,148,421.66
  6. Step 6: Final answer
    x = 10,139,011.97

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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.