Home / 20,876,409,123.57-28,810,393,272.77-12,303,197,597.16

Finding the Fourth Proportional to 20,876,409,123.57, 28,810,393,272.77 and 12,303,197,597.16

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Solution

The fourth proportional to 20,876,409,123.57, 28,810,393,272.77 and 12,303,197,597.16 is: 16,978,971,775.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,876,409,123.57 : 28,810,393,272.77 = 12,303,197,597.16 : x
  2. Step 2: Convert to fraction form
    20,876,409,123.57/28,810,393,272.77 = 12,303,197,597.16/x
  3. Step 3: Cross multiply
    20,876,409,123.57x = 28,810,393,272.77 × 12,303,197,597.16
  4. Step 4: Simplify right side
    20,876,409,123.57x = 354,459,961,286,778,486,784
  5. Step 5: Solve for x
    x = 354,459,961,286,778,486,784/20,876,409,123.57
  6. Step 6: Final answer
    x = 16,978,971,775.69

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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.