Home / 491,216,415.65-677,938,096.49-279,574,706.64

Finding the Fourth Proportional to 491,216,415.65, 677,938,096.49 and 279,574,706.64

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Solution

The fourth proportional to 491,216,415.65, 677,938,096.49 and 279,574,706.64 is: 385,846,926.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,216,415.65 : 677,938,096.49 = 279,574,706.64 : x
  2. Step 2: Convert to fraction form
    491,216,415.65/677,938,096.49 = 279,574,706.64/x
  3. Step 3: Cross multiply
    491,216,415.65x = 677,938,096.49 × 279,574,706.64
  4. Step 4: Simplify right side
    491,216,415.65x = 189,534,344,446,271,744
  5. Step 5: Solve for x
    x = 189,534,344,446,271,744/491,216,415.65
  6. Step 6: Final answer
    x = 385,846,926.95

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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.