Home / 21,919,885.94-30,249,501.44-12,131,005.16

Finding the Fourth Proportional to 21,919,885.94, 30,249,501.44 and 12,131,005.16

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Solution

The fourth proportional to 21,919,885.94, 30,249,501.44 and 12,131,005.16 is: 16,740,819.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,919,885.94 : 30,249,501.44 = 12,131,005.16 : x
  2. Step 2: Convert to fraction form
    21,919,885.94/30,249,501.44 = 12,131,005.16/x
  3. Step 3: Cross multiply
    21,919,885.94x = 30,249,501.44 × 12,131,005.16
  4. Step 4: Simplify right side
    21,919,885.94x = 366,956,858,071,036.12
  5. Step 5: Solve for x
    x = 366,956,858,071,036.12/21,919,885.94
  6. Step 6: Final answer
    x = 16,740,819.68

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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.