Home / 21,286,756,428.28-31,929,783,357.30-6,363,956,928.76

Finding the Fourth Proportional to 21,286,756,428.28, 31,929,783,357.30 and 6,363,956,928.76

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Solution

The fourth proportional to 21,286,756,428.28, 31,929,783,357.30 and 6,363,956,928.76 is: 9,545,830,371.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,286,756,428.28 : 31,929,783,357.30 = 6,363,956,928.76 : x
  2. Step 2: Convert to fraction form
    21,286,756,428.28/31,929,783,357.30 = 6,363,956,928.76/x
  3. Step 3: Cross multiply
    21,286,756,428.28x = 31,929,783,357.30 × 6,363,956,928.76
  4. Step 4: Simplify right side
    21,286,756,428.28x = 203,199,766,030,495,055,872
  5. Step 5: Solve for x
    x = 203,199,766,030,495,055,872/21,286,756,428.28
  6. Step 6: Final answer
    x = 9,545,830,371.81

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.