Home / 12,789,389.60-19,184,084.40-9,220,205.60

Finding the Fourth Proportional to 12,789,389.60, 19,184,084.40 and 9,220,205.60

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Solution

The fourth proportional to 12,789,389.60, 19,184,084.40 and 9,220,205.60 is: 13,830,308.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,789,389.60 : 19,184,084.40 = 9,220,205.60 : x
  2. Step 2: Convert to fraction form
    12,789,389.60/19,184,084.40 = 9,220,205.60/x
  3. Step 3: Cross multiply
    12,789,389.60x = 19,184,084.40 × 9,220,205.60
  4. Step 4: Simplify right side
    12,789,389.60x = 176,881,202,415,752.62
  5. Step 5: Solve for x
    x = 176,881,202,415,752.62/12,789,389.60
  6. Step 6: Final answer
    x = 13,830,308.40

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Double scale
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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.