Home / 12,699,334.80-17,527,855.14-7,808,765.40

Finding the Fourth Proportional to 12,699,334.80, 17,527,855.14 and 7,808,765.40

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Solution

The fourth proportional to 12,699,334.80, 17,527,855.14 and 7,808,765.40 is: 10,777,801.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,699,334.80 : 17,527,855.14 = 7,808,765.40 : x
  2. Step 2: Convert to fraction form
    12,699,334.80/17,527,855.14 = 7,808,765.40/x
  3. Step 3: Cross multiply
    12,699,334.80x = 17,527,855.14 × 7,808,765.40
  4. Step 4: Simplify right side
    12,699,334.80x = 136,870,908,753,444.17
  5. Step 5: Solve for x
    x = 136,870,908,753,444.17/12,699,334.80
  6. Step 6: Final answer
    x = 10,777,801.43

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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.