Home / 20,261,347,441.48-27,960,662,119.59-11,229,688,634.78

Finding the Fourth Proportional to 20,261,347,441.48, 27,960,662,119.59 and 11,229,688,634.78

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Solution

The fourth proportional to 20,261,347,441.48, 27,960,662,119.59 and 11,229,688,634.78 is: 15,496,971,784.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,261,347,441.48 : 27,960,662,119.59 = 11,229,688,634.78 : x
  2. Step 2: Convert to fraction form
    20,261,347,441.48/27,960,662,119.59 = 11,229,688,634.78/x
  3. Step 3: Cross multiply
    20,261,347,441.48x = 27,960,662,119.59 × 11,229,688,634.78
  4. Step 4: Simplify right side
    20,261,347,441.48x = 313,989,529,625,283,526,656
  5. Step 5: Solve for x
    x = 313,989,529,625,283,526,656/20,261,347,441.48
  6. Step 6: Final answer
    x = 15,496,971,784.93

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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.