Home / 12,402,712.70-18,604,069.05-9,043,480.70

Finding the Fourth Proportional to 12,402,712.70, 18,604,069.05 and 9,043,480.70

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Solution

The fourth proportional to 12,402,712.70, 18,604,069.05 and 9,043,480.70 is: 13,565,221.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,402,712.70 : 18,604,069.05 = 9,043,480.70 : x
  2. Step 2: Convert to fraction form
    12,402,712.70/18,604,069.05 = 9,043,480.70/x
  3. Step 3: Cross multiply
    12,402,712.70x = 18,604,069.05 × 9,043,480.70
  4. Step 4: Simplify right side
    12,402,712.70x = 168,245,539,395,142.31
  5. Step 5: Solve for x
    x = 168,245,539,395,142.31/12,402,712.70
  6. Step 6: Final answer
    x = 13,565,221.05

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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.