Home / 21,919,819.86-30,248,606.59-12,130,676.64

Finding the Fourth Proportional to 21,919,819.86, 30,248,606.59 and 12,130,676.64

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Solution

The fourth proportional to 21,919,819.86, 30,248,606.59 and 12,130,676.64 is: 16,739,921.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,919,819.86 : 30,248,606.59 = 12,130,676.64 : x
  2. Step 2: Convert to fraction form
    21,919,819.86/30,248,606.59 = 12,130,676.64/x
  3. Step 3: Cross multiply
    21,919,819.86x = 30,248,606.59 × 12,130,676.64
  4. Step 4: Simplify right side
    21,919,819.86x = 366,936,065,323,536.38
  5. Step 5: Solve for x
    x = 366,936,065,323,536.38/21,919,819.86
  6. Step 6: Final answer
    x = 16,739,921.57

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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.