Home / 20,876,409,124.32-28,810,393,273.81-12,303,197,597.91

Finding the Fourth Proportional to 20,876,409,124.32, 28,810,393,273.81 and 12,303,197,597.91

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Solution

The fourth proportional to 20,876,409,124.32, 28,810,393,273.81 and 12,303,197,597.91 is: 16,978,971,776.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,876,409,124.32 : 28,810,393,273.81 = 12,303,197,597.91 : x
  2. Step 2: Convert to fraction form
    20,876,409,124.32/28,810,393,273.81 = 12,303,197,597.91/x
  3. Step 3: Cross multiply
    20,876,409,124.32x = 28,810,393,273.81 × 12,303,197,597.91
  4. Step 4: Simplify right side
    20,876,409,124.32x = 354,459,961,321,181,609,984
  5. Step 5: Solve for x
    x = 354,459,961,321,181,609,984/20,876,409,124.32
  6. Step 6: Final answer
    x = 16,978,971,776.72

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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.