Home / 13,315,655.94-18,388,296.15-12,590,228.58

Finding the Fourth Proportional to 13,315,655.94, 18,388,296.15 and 12,590,228.58

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Solution

The fourth proportional to 13,315,655.94, 18,388,296.15 and 12,590,228.58 is: 17,386,515.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,315,655.94 : 18,388,296.15 = 12,590,228.58 : x
  2. Step 2: Convert to fraction form
    13,315,655.94/18,388,296.15 = 12,590,228.58/x
  3. Step 3: Cross multiply
    13,315,655.94x = 18,388,296.15 × 12,590,228.58
  4. Step 4: Simplify right side
    13,315,655.94x = 231,512,851,725,233.94
  5. Step 5: Solve for x
    x = 231,512,851,725,233.94/13,315,655.94
  6. Step 6: Final answer
    x = 17,386,515.00

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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.