Home / 13,434,894-18,534,315.12-8,537,493.84

Finding the Fourth Proportional to 13,434,894, 18,534,315.12 and 8,537,493.84

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Solution

The fourth proportional to 13,434,894, 18,534,315.12 and 8,537,493.84 is: 11,778,031.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,434,894 : 18,534,315.12 = 8,537,493.84 : x
  2. Step 2: Convert to fraction form
    13,434,894/18,534,315.12 = 8,537,493.84/x
  3. Step 3: Cross multiply
    13,434,894x = 18,534,315.12 × 8,537,493.84
  4. Step 4: Simplify right side
    13,434,894x = 158,236,601,165,618.88
  5. Step 5: Solve for x
    x = 158,236,601,165,618.88/13,434,894
  6. Step 6: Final answer
    x = 11,778,031.23

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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.