Home / 21,210,293,286.15-31,779,436,849.97-12,798,524,567.63

Finding the Fourth Proportional to 21,210,293,286.15, 31,779,436,849.97 and 12,798,524,567.63

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Solution

The fourth proportional to 21,210,293,286.15, 31,779,436,849.97 and 12,798,524,567.63 is: 19,176,062,196.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,210,293,286.15 : 31,779,436,849.97 = 12,798,524,567.63 : x
  2. Step 2: Convert to fraction form
    21,210,293,286.15/31,779,436,849.97 = 12,798,524,567.63/x
  3. Step 3: Cross multiply
    21,210,293,286.15x = 31,779,436,849.97 × 12,798,524,567.63
  4. Step 4: Simplify right side
    21,210,293,286.15x = 406,729,903,269,564,317,696
  5. Step 5: Solve for x
    x = 406,729,903,269,564,317,696/21,210,293,286.15
  6. Step 6: Final answer
    x = 19,176,062,196.89

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.