Home / 30,477,416.40-45,716,124.60-12,290,324.40

Finding the Fourth Proportional to 30,477,416.40, 45,716,124.60 and 12,290,324.40

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Solution

The fourth proportional to 30,477,416.40, 45,716,124.60 and 12,290,324.40 is: 18,435,486.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,477,416.40 : 45,716,124.60 = 12,290,324.40 : x
  2. Step 2: Convert to fraction form
    30,477,416.40/45,716,124.60 = 12,290,324.40/x
  3. Step 3: Cross multiply
    30,477,416.40x = 45,716,124.60 × 12,290,324.40
  4. Step 4: Simplify right side
    30,477,416.40x = 561,866,001,644,820.25
  5. Step 5: Solve for x
    x = 561,866,001,644,820.25/30,477,416.40
  6. Step 6: Final answer
    x = 18,435,486.60

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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.