Home / 13,553,713.31-18,704,124.47-7,442,141.81

Finding the Fourth Proportional to 13,553,713.31, 18,704,124.47 and 7,442,141.81

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Solution

The fourth proportional to 13,553,713.31, 18,704,124.47 and 7,442,141.81 is: 10,270,155.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,553,713.31 : 18,704,124.47 = 7,442,141.81 : x
  2. Step 2: Convert to fraction form
    13,553,713.31/18,704,124.47 = 7,442,141.81/x
  3. Step 3: Cross multiply
    13,553,713.31x = 18,704,124.47 × 7,442,141.81
  4. Step 4: Simplify right side
    13,553,713.31x = 139,198,746,737,631.08
  5. Step 5: Solve for x
    x = 139,198,746,737,631.08/13,553,713.31
  6. Step 6: Final answer
    x = 10,270,155.75

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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.