Home / 21,842,091-30,142,725.15-11,919,613.05

Finding the Fourth Proportional to 21,842,091, 30,142,725.15 and 11,919,613.05

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Solution

The fourth proportional to 21,842,091, 30,142,725.15 and 11,919,613.05 is: 16,449,415.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,842,091 : 30,142,725.15 = 11,919,613.05 : x
  2. Step 2: Convert to fraction form
    21,842,091/30,142,725.15 = 11,919,613.05/x
  3. Step 3: Cross multiply
    21,842,091x = 30,142,725.15 × 11,919,613.05
  4. Step 4: Simplify right side
    21,842,091x = 359,289,620,060,503.19
  5. Step 5: Solve for x
    x = 359,289,620,060,503.19/21,842,091
  6. Step 6: Final answer
    x = 16,449,415.03

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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.