Home / 20,951,707,419.52-28,909,040,085.12-12,039,314,303.68

Finding the Fourth Proportional to 20,951,707,419.52, 28,909,040,085.12 and 12,039,314,303.68

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Solution

The fourth proportional to 20,951,707,419.52, 28,909,040,085.12 and 12,039,314,303.68 is: 16,611,773,581.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,951,707,419.52 : 28,909,040,085.12 = 12,039,314,303.68 : x
  2. Step 2: Convert to fraction form
    20,951,707,419.52/28,909,040,085.12 = 12,039,314,303.68/x
  3. Step 3: Cross multiply
    20,951,707,419.52x = 28,909,040,085.12 × 12,039,314,303.68
  4. Step 4: Simplify right side
    20,951,707,419.52x = 348,045,019,802,443,710,464
  5. Step 5: Solve for x
    x = 348,045,019,802,443,710,464/20,951,707,419.52
  6. Step 6: Final answer
    x = 16,611,773,581.67

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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.