Home / 30,477,419.40-45,716,129.10-12,290,327.40

Finding the Fourth Proportional to 30,477,419.40, 45,716,129.10 and 12,290,327.40

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Solution

The fourth proportional to 30,477,419.40, 45,716,129.10 and 12,290,327.40 is: 18,435,491.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,477,419.40 : 45,716,129.10 = 12,290,327.40 : x
  2. Step 2: Convert to fraction form
    30,477,419.40/45,716,129.10 = 12,290,327.40/x
  3. Step 3: Cross multiply
    30,477,419.40x = 45,716,129.10 × 12,290,327.40
  4. Step 4: Simplify right side
    30,477,419.40x = 561,866,194,099,667.38
  5. Step 5: Solve for x
    x = 561,866,194,099,667.38/30,477,419.40
  6. Step 6: Final answer
    x = 18,435,491.10

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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.