Home / 13,875,690.78-19,148,221.35-7,680,604.57

Finding the Fourth Proportional to 13,875,690.78, 19,148,221.35 and 7,680,604.57

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Solution

The fourth proportional to 13,875,690.78, 19,148,221.35 and 7,680,604.57 is: 10,599,105.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,875,690.78 : 19,148,221.35 = 7,680,604.57 : x
  2. Step 2: Convert to fraction form
    13,875,690.78/19,148,221.35 = 7,680,604.57/x
  3. Step 3: Cross multiply
    13,875,690.78x = 19,148,221.35 × 7,680,604.57
  4. Step 4: Simplify right side
    13,875,690.78x = 147,069,916,360,311.03
  5. Step 5: Solve for x
    x = 147,069,916,360,311.03/13,875,690.78
  6. Step 6: Final answer
    x = 10,599,105.93

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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.