Home / 13,381,809.39-18,462,828.56-7,579,669.23

Finding the Fourth Proportional to 13,381,809.39, 18,462,828.56 and 7,579,669.23

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Solution

The fourth proportional to 13,381,809.39, 18,462,828.56 and 7,579,669.23 is: 10,457,639.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,381,809.39 : 18,462,828.56 = 7,579,669.23 : x
  2. Step 2: Convert to fraction form
    13,381,809.39/18,462,828.56 = 7,579,669.23/x
  3. Step 3: Cross multiply
    13,381,809.39x = 18,462,828.56 × 7,579,669.23
  4. Step 4: Simplify right side
    13,381,809.39x = 139,942,133,497,098.88
  5. Step 5: Solve for x
    x = 139,942,133,497,098.88/13,381,809.39
  6. Step 6: Final answer
    x = 10,457,639.13

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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.