Home / 12,885,817.80-17,781,974.28-7,084,554.90

Finding the Fourth Proportional to 12,885,817.80, 17,781,974.28 and 7,084,554.90

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Solution

The fourth proportional to 12,885,817.80, 17,781,974.28 and 7,084,554.90 is: 9,776,436.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,885,817.80 : 17,781,974.28 = 7,084,554.90 : x
  2. Step 2: Convert to fraction form
    12,885,817.80/17,781,974.28 = 7,084,554.90/x
  3. Step 3: Cross multiply
    12,885,817.80x = 17,781,974.28 × 7,084,554.90
  4. Step 4: Simplify right side
    12,885,817.80x = 125,977,373,017,047.98
  5. Step 5: Solve for x
    x = 125,977,373,017,047.98/12,885,817.80
  6. Step 6: Final answer
    x = 9,776,436.00

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1.5x scale

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.