Home / 12,771,390.60-19,157,085.90-11,385,707.40

Finding the Fourth Proportional to 12,771,390.60, 19,157,085.90 and 11,385,707.40

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Solution

The fourth proportional to 12,771,390.60, 19,157,085.90 and 11,385,707.40 is: 17,078,561.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,771,390.60 : 19,157,085.90 = 11,385,707.40 : x
  2. Step 2: Convert to fraction form
    12,771,390.60/19,157,085.90 = 11,385,707.40/x
  3. Step 3: Cross multiply
    12,771,390.60x = 19,157,085.90 × 11,385,707.40
  4. Step 4: Simplify right side
    12,771,390.60x = 218,116,974,694,065.66
  5. Step 5: Solve for x
    x = 218,116,974,694,065.66/12,771,390.60
  6. Step 6: Final answer
    x = 17,078,561.10

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.