Home / 20,261,347,483.12-27,960,662,176.88-11,229,688,676.36

Finding the Fourth Proportional to 20,261,347,483.12, 27,960,662,176.88 and 11,229,688,676.36

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Solution

The fourth proportional to 20,261,347,483.12, 27,960,662,176.88 and 11,229,688,676.36 is: 15,496,971,842.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,261,347,483.12 : 27,960,662,176.88 = 11,229,688,676.36 : x
  2. Step 2: Convert to fraction form
    20,261,347,483.12/27,960,662,176.88 = 11,229,688,676.36/x
  3. Step 3: Cross multiply
    20,261,347,483.12x = 27,960,662,176.88 × 11,229,688,676.36
  4. Step 4: Simplify right side
    20,261,347,483.12x = 313,989,531,431,236,730,880
  5. Step 5: Solve for x
    x = 313,989,531,431,236,730,880/20,261,347,483.12
  6. Step 6: Final answer
    x = 15,496,971,842.21

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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.