Home / 13,355,145.60-20,032,718.40-12,008,828.40

Finding the Fourth Proportional to 13,355,145.60, 20,032,718.40 and 12,008,828.40

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Solution

The fourth proportional to 13,355,145.60, 20,032,718.40 and 12,008,828.40 is: 18,013,242.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,355,145.60 : 20,032,718.40 = 12,008,828.40 : x
  2. Step 2: Convert to fraction form
    13,355,145.60/20,032,718.40 = 12,008,828.40/x
  3. Step 3: Cross multiply
    13,355,145.60x = 20,032,718.40 × 12,008,828.40
  4. Step 4: Simplify right side
    13,355,145.60x = 240,569,477,651,122.56
  5. Step 5: Solve for x
    x = 240,569,477,651,122.56/13,355,145.60
  6. Step 6: Final answer
    x = 18,013,242.60

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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.