Home / 12,912,864.74-17,819,178.39-7,402,288.94

Finding the Fourth Proportional to 12,912,864.74, 17,819,178.39 and 7,402,288.94

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Solution

The fourth proportional to 12,912,864.74, 17,819,178.39 and 7,402,288.94 is: 10,214,829.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,912,864.74 : 17,819,178.39 = 7,402,288.94 : x
  2. Step 2: Convert to fraction form
    12,912,864.74/17,819,178.39 = 7,402,288.94/x
  3. Step 3: Cross multiply
    12,912,864.74x = 17,819,178.39 × 7,402,288.94
  4. Step 4: Simplify right side
    12,912,864.74x = 131,902,707,027,088.11
  5. Step 5: Solve for x
    x = 131,902,707,027,088.11/12,912,864.74
  6. Step 6: Final answer
    x = 10,214,829.14

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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.