Home / 20,970,065,592.57-28,938,689,411.03-11,324,794,633.68

Finding the Fourth Proportional to 20,970,065,592.57, 28,938,689,411.03 and 11,324,794,633.68

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Solution

The fourth proportional to 20,970,065,592.57, 28,938,689,411.03 and 11,324,794,633.68 is: 15,628,215,996.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,970,065,592.57 : 28,938,689,411.03 = 11,324,794,633.68 : x
  2. Step 2: Convert to fraction form
    20,970,065,592.57/28,938,689,411.03 = 11,324,794,633.68/x
  3. Step 3: Cross multiply
    20,970,065,592.57x = 28,938,689,411.03 × 11,324,794,633.68
  4. Step 4: Simplify right side
    20,970,065,592.57x = 327,724,714,547,708,166,144
  5. Step 5: Solve for x
    x = 327,724,714,547,708,166,144/20,970,065,592.57
  6. Step 6: Final answer
    x = 15,628,215,996.80

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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.