Home / 21,919,829.86-30,248,620.39-12,130,686.64

Finding the Fourth Proportional to 21,919,829.86, 30,248,620.39 and 12,130,686.64

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Solution

The fourth proportional to 21,919,829.86, 30,248,620.39 and 12,130,686.64 is: 16,739,935.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,919,829.86 : 30,248,620.39 = 12,130,686.64 : x
  2. Step 2: Convert to fraction form
    21,919,829.86/30,248,620.39 = 12,130,686.64/x
  3. Step 3: Cross multiply
    21,919,829.86x = 30,248,620.39 × 12,130,686.64
  4. Step 4: Simplify right side
    21,919,829.86x = 366,936,535,243,404.62
  5. Step 5: Solve for x
    x = 366,936,535,243,404.62/21,919,829.86
  6. Step 6: Final answer
    x = 16,739,935.37

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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.