Home / 13,578,153.74-20,239,317.37-12,488,535.67

Finding the Fourth Proportional to 13,578,153.74, 20,239,317.37 and 12,488,535.67

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Solution

The fourth proportional to 13,578,153.74, 20,239,317.37 and 12,488,535.67 is: 18,615,155.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,578,153.74 : 20,239,317.37 = 12,488,535.67 : x
  2. Step 2: Convert to fraction form
    13,578,153.74/20,239,317.37 = 12,488,535.67/x
  3. Step 3: Cross multiply
    13,578,153.74x = 20,239,317.37 × 12,488,535.67
  4. Step 4: Simplify right side
    13,578,153.74x = 252,759,436,810,499
  5. Step 5: Solve for x
    x = 252,759,436,810,499/13,578,153.74
  6. Step 6: Final answer
    x = 18,615,155.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.