Home / 12,938,148.90-17,860,384.17-8,356,704.66

Finding the Fourth Proportional to 12,938,148.90, 17,860,384.17 and 8,356,704.66

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Solution

The fourth proportional to 12,938,148.90, 17,860,384.17 and 8,356,704.66 is: 11,535,959.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,938,148.90 : 17,860,384.17 = 8,356,704.66 : x
  2. Step 2: Convert to fraction form
    12,938,148.90/17,860,384.17 = 8,356,704.66/x
  3. Step 3: Cross multiply
    12,938,148.90x = 17,860,384.17 × 8,356,704.66
  4. Step 4: Simplify right side
    12,938,148.90x = 149,253,955,622,829.25
  5. Step 5: Solve for x
    x = 149,253,955,622,829.25/12,938,148.90
  6. Step 6: Final answer
    x = 11,535,959.03

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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.