Home / 909,601,860.59-1,255,254,350.91-491,914,145.88

Finding the Fourth Proportional to 909,601,860.59, 1,255,254,350.91 and 491,914,145.88

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Solution

The fourth proportional to 909,601,860.59, 1,255,254,350.91 and 491,914,145.88 is: 678,843,567.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    909,601,860.59 : 1,255,254,350.91 = 491,914,145.88 : x
  2. Step 2: Convert to fraction form
    909,601,860.59/1,255,254,350.91 = 491,914,145.88/x
  3. Step 3: Cross multiply
    909,601,860.59x = 1,255,254,350.91 × 491,914,145.88
  4. Step 4: Simplify right side
    909,601,860.59x = 617,477,371,890,046,464
  5. Step 5: Solve for x
    x = 617,477,371,890,046,464/909,601,860.59
  6. Step 6: Final answer
    x = 678,843,567.33

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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.