Home / 14,939,795.90-20,616,638.36-9,138,151.46

Finding the Fourth Proportional to 14,939,795.90, 20,616,638.36 and 9,138,151.46

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Solution

The fourth proportional to 14,939,795.90, 20,616,638.36 and 9,138,151.46 is: 12,610,477.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,939,795.90 : 20,616,638.36 = 9,138,151.46 : x
  2. Step 2: Convert to fraction form
    14,939,795.90/20,616,638.36 = 9,138,151.46/x
  3. Step 3: Cross multiply
    14,939,795.90x = 20,616,638.36 × 9,138,151.46
  4. Step 4: Simplify right side
    14,939,795.90x = 188,397,963,780,952.06
  5. Step 5: Solve for x
    x = 188,397,963,780,952.06/14,939,795.90
  6. Step 6: Final answer
    x = 12,610,477.75

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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.