Home / 20,970,065,627.96-28,938,689,459.86-11,324,794,669.07

Finding the Fourth Proportional to 20,970,065,627.96, 28,938,689,459.86 and 11,324,794,669.07

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Solution

The fourth proportional to 20,970,065,627.96, 28,938,689,459.86 and 11,324,794,669.07 is: 15,628,216,045.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,970,065,627.96 : 28,938,689,459.86 = 11,324,794,669.07 : x
  2. Step 2: Convert to fraction form
    20,970,065,627.96/28,938,689,459.86 = 11,324,794,669.07/x
  3. Step 3: Cross multiply
    20,970,065,627.96x = 28,938,689,459.86 × 11,324,794,669.07
  4. Step 4: Simplify right side
    20,970,065,627.96x = 327,724,716,124,761,358,336
  5. Step 5: Solve for x
    x = 327,724,716,124,761,358,336/20,970,065,627.96
  6. Step 6: Final answer
    x = 15,628,216,045.63

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1.5x scale

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.