Home / 30,402,015.60-45,628,828.20-12,463,993.20

Finding the Fourth Proportional to 30,402,015.60, 45,628,828.20 and 12,463,993.20

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Solution

The fourth proportional to 30,402,015.60, 45,628,828.20 and 12,463,993.20 is: 18,706,569.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,402,015.60 : 45,628,828.20 = 12,463,993.20 : x
  2. Step 2: Convert to fraction form
    30,402,015.60/45,628,828.20 = 12,463,993.20/x
  3. Step 3: Cross multiply
    30,402,015.60x = 45,628,828.20 × 12,463,993.20
  4. Step 4: Simplify right side
    30,402,015.60x = 568,717,404,408,768.25
  5. Step 5: Solve for x
    x = 568,717,404,408,768.25/30,402,015.60
  6. Step 6: Final answer
    x = 18,706,569.06

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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.