Home / 13,579,748.16-18,739,678.40-7,468,176

Finding the Fourth Proportional to 13,579,748.16, 18,739,678.40 and 7,468,176

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Solution

The fourth proportional to 13,579,748.16, 18,739,678.40 and 7,468,176 is: 10,305,877.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,579,748.16 : 18,739,678.40 = 7,468,176 : x
  2. Step 2: Convert to fraction form
    13,579,748.16/18,739,678.40 = 7,468,176/x
  3. Step 3: Cross multiply
    13,579,748.16x = 18,739,678.40 × 7,468,176
  4. Step 4: Simplify right side
    13,579,748.16x = 139,951,216,474,598.39
  5. Step 5: Solve for x
    x = 139,951,216,474,598.39/13,579,748.16
  6. Step 6: Final answer
    x = 10,305,877.17

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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.