Home / 20,515,047,763.74-28,310,473,101.78-11,358,701,553

Finding the Fourth Proportional to 20,515,047,763.74, 28,310,473,101.78 and 11,358,701,553

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Solution

The fourth proportional to 20,515,047,763.74, 28,310,473,101.78 and 11,358,701,553 is: 15,674,846,019.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,515,047,763.74 : 28,310,473,101.78 = 11,358,701,553 : x
  2. Step 2: Convert to fraction form
    20,515,047,763.74/28,310,473,101.78 = 11,358,701,553/x
  3. Step 3: Cross multiply
    20,515,047,763.74x = 28,310,473,101.78 × 11,358,701,553
  4. Step 4: Simplify right side
    20,515,047,763.74x = 321,570,214,787,353,214,976
  5. Step 5: Solve for x
    x = 321,570,214,787,353,214,976/20,515,047,763.74
  6. Step 6: Final answer
    x = 15,674,846,019.89

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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.