Home / 12,938,150.90-17,860,386.94-8,356,706.66

Finding the Fourth Proportional to 12,938,150.90, 17,860,386.94 and 8,356,706.66

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Solution

The fourth proportional to 12,938,150.90, 17,860,386.94 and 8,356,706.66 is: 11,535,961.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,938,150.90 : 17,860,386.94 = 8,356,706.66 : x
  2. Step 2: Convert to fraction form
    12,938,150.90/17,860,386.94 = 8,356,706.66/x
  3. Step 3: Cross multiply
    12,938,150.90x = 17,860,386.94 × 8,356,706.66
  4. Step 4: Simplify right side
    12,938,150.90x = 149,254,014,491,675.03
  5. Step 5: Solve for x
    x = 149,254,014,491,675.03/12,938,150.90
  6. Step 6: Final answer
    x = 11,535,961.80

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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.