Home / 20,974,698,933.48-28,945,096,139.76-11,329,428,853.38

Finding the Fourth Proportional to 20,974,698,933.48, 28,945,096,139.76 and 11,329,428,853.38

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Solution

The fourth proportional to 20,974,698,933.48, 28,945,096,139.76 and 11,329,428,853.38 is: 15,634,618,089.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,974,698,933.48 : 28,945,096,139.76 = 11,329,428,853.38 : x
  2. Step 2: Convert to fraction form
    20,974,698,933.48/28,945,096,139.76 = 11,329,428,853.38/x
  3. Step 3: Cross multiply
    20,974,698,933.48x = 28,945,096,139.76 × 11,329,428,853.38
  4. Step 4: Simplify right side
    20,974,698,933.48x = 327,931,407,369,654,960,128
  5. Step 5: Solve for x
    x = 327,931,407,369,654,960,128/20,974,698,933.48
  6. Step 6: Final answer
    x = 15,634,618,089.62

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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.