Home / 20,559,725,785.78-28,365,639,450.02-12,418,487,212.72

Finding the Fourth Proportional to 20,559,725,785.78, 28,365,639,450.02 and 12,418,487,212.72

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Solution

The fourth proportional to 20,559,725,785.78, 28,365,639,450.02 and 12,418,487,212.72 is: 17,133,415,808.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,559,725,785.78 : 28,365,639,450.02 = 12,418,487,212.72 : x
  2. Step 2: Convert to fraction form
    20,559,725,785.78/28,365,639,450.02 = 12,418,487,212.72/x
  3. Step 3: Cross multiply
    20,559,725,785.78x = 28,365,639,450.02 × 12,418,487,212.72
  4. Step 4: Simplify right side
    20,559,725,785.78x = 352,258,330,790,718,799,872
  5. Step 5: Solve for x
    x = 352,258,330,790,718,799,872/20,559,725,785.78
  6. Step 6: Final answer
    x = 17,133,415,808.22

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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.