Home / 1,098,693,977.65-1,647,974,222.47-389,677,675.57

Finding the Fourth Proportional to 1,098,693,977.65, 1,647,974,222.47 and 389,677,675.57

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Solution

The fourth proportional to 1,098,693,977.65, 1,647,974,222.47 and 389,677,675.57 is: 584,492,841.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,098,693,977.65 : 1,647,974,222.47 = 389,677,675.57 : x
  2. Step 2: Convert to fraction form
    1,098,693,977.65/1,647,974,222.47 = 389,677,675.57/x
  3. Step 3: Cross multiply
    1,098,693,977.65x = 1,647,974,222.47 × 389,677,675.57
  4. Step 4: Simplify right side
    1,098,693,977.65x = 642,178,764,407,774,208
  5. Step 5: Solve for x
    x = 642,178,764,407,774,208/1,098,693,977.65
  6. Step 6: Final answer
    x = 584,492,841.02

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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.