Home / 707,774,540.28-977,147,843.79-629,241,178.60

Finding the Fourth Proportional to 707,774,540.28, 977,147,843.79 and 629,241,178.60

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Solution

The fourth proportional to 707,774,540.28, 977,147,843.79 and 629,241,178.60 is: 868,725,315.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    707,774,540.28 : 977,147,843.79 = 629,241,178.60 : x
  2. Step 2: Convert to fraction form
    707,774,540.28/977,147,843.79 = 629,241,178.60/x
  3. Step 3: Cross multiply
    707,774,540.28x = 977,147,843.79 × 629,241,178.60
  4. Step 4: Simplify right side
    707,774,540.28x = 614,861,660,892,868,352
  5. Step 5: Solve for x
    x = 614,861,660,892,868,352/707,774,540.28
  6. Step 6: Final answer
    x = 868,725,315.62

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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.