Home / 21,616,306.36-29,827,556.72-12,912,631.39

Finding the Fourth Proportional to 21,616,306.36, 29,827,556.72 and 12,912,631.39

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Solution

The fourth proportional to 21,616,306.36, 29,827,556.72 and 12,912,631.39 is: 17,817,671.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,616,306.36 : 29,827,556.72 = 12,912,631.39 : x
  2. Step 2: Convert to fraction form
    21,616,306.36/29,827,556.72 = 12,912,631.39/x
  3. Step 3: Cross multiply
    21,616,306.36x = 29,827,556.72 × 12,912,631.39
  4. Step 4: Simplify right side
    21,616,306.36x = 385,152,244,975,976.50
  5. Step 5: Solve for x
    x = 385,152,244,975,976.50/21,616,306.36
  6. Step 6: Final answer
    x = 17,817,671.47

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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.