Home / 12,819,551.46-17,690,985.09-7,018,701.54

Finding the Fourth Proportional to 12,819,551.46, 17,690,985.09 and 7,018,701.54

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Solution

The fourth proportional to 12,819,551.46, 17,690,985.09 and 7,018,701.54 is: 9,685,810.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,819,551.46 : 17,690,985.09 = 7,018,701.54 : x
  2. Step 2: Convert to fraction form
    12,819,551.46/17,690,985.09 = 7,018,701.54/x
  3. Step 3: Cross multiply
    12,819,551.46x = 17,690,985.09 × 7,018,701.54
  4. Step 4: Simplify right side
    12,819,551.46x = 124,167,744,295,300.03
  5. Step 5: Solve for x
    x = 124,167,744,295,300.03/12,819,551.46
  6. Step 6: Final answer
    x = 9,685,810.36

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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.