Home / 12,249,981.75-16,905,189.77-6,668,388.73

Finding the Fourth Proportional to 12,249,981.75, 16,905,189.77 and 6,668,388.73

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Solution

The fourth proportional to 12,249,981.75, 16,905,189.77 and 6,668,388.73 is: 9,202,493.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,249,981.75 : 16,905,189.77 = 6,668,388.73 : x
  2. Step 2: Convert to fraction form
    12,249,981.75/16,905,189.77 = 6,668,388.73/x
  3. Step 3: Cross multiply
    12,249,981.75x = 16,905,189.77 × 6,668,388.73
  4. Step 4: Simplify right side
    12,249,981.75x = 112,730,376,940,779.30
  5. Step 5: Solve for x
    x = 112,730,376,940,779.30/12,249,981.75
  6. Step 6: Final answer
    x = 9,202,493.46

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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.