Home / 12,671,801.90-18,965,712.45-11,664,032.30

Finding the Fourth Proportional to 12,671,801.90, 18,965,712.45 and 11,664,032.30

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Solution

The fourth proportional to 12,671,801.90, 18,965,712.45 and 11,664,032.30 is: 17,457,397.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,671,801.90 : 18,965,712.45 = 11,664,032.30 : x
  2. Step 2: Convert to fraction form
    12,671,801.90/18,965,712.45 = 11,664,032.30/x
  3. Step 3: Cross multiply
    12,671,801.90x = 18,965,712.45 × 11,664,032.30
  4. Step 4: Simplify right side
    12,671,801.90x = 221,216,682,609,312.12
  5. Step 5: Solve for x
    x = 221,216,682,609,312.12/12,671,801.90
  6. Step 6: Final answer
    x = 17,457,397.48

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.