Home / 1,211,672,958.28-1,818,061,678.60-621,877,377.52

Finding the Fourth Proportional to 1,211,672,958.28, 1,818,061,678.60 and 621,877,377.52

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Solution

The fourth proportional to 1,211,672,958.28, 1,818,061,678.60 and 621,877,377.52 is: 933,099,497.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,211,672,958.28 : 1,818,061,678.60 = 621,877,377.52 : x
  2. Step 2: Convert to fraction form
    1,211,672,958.28/1,818,061,678.60 = 621,877,377.52/x
  3. Step 3: Cross multiply
    1,211,672,958.28x = 1,818,061,678.60 × 621,877,377.52
  4. Step 4: Simplify right side
    1,211,672,958.28x = 1,130,611,428,857,377,024
  5. Step 5: Solve for x
    x = 1,130,611,428,857,377,024/1,211,672,958.28
  6. Step 6: Final answer
    x = 933,099,497.79

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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.