Home / 20,220,429.60-30,330,644.40-13,725,914.40

Finding the Fourth Proportional to 20,220,429.60, 30,330,644.40 and 13,725,914.40

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Solution

The fourth proportional to 20,220,429.60, 30,330,644.40 and 13,725,914.40 is: 20,588,871.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,220,429.60 : 30,330,644.40 = 13,725,914.40 : x
  2. Step 2: Convert to fraction form
    20,220,429.60/30,330,644.40 = 13,725,914.40/x
  3. Step 3: Cross multiply
    20,220,429.60x = 30,330,644.40 × 13,725,914.40
  4. Step 4: Simplify right side
    20,220,429.60x = 416,315,828,731,239.38
  5. Step 5: Solve for x
    x = 416,315,828,731,239.38/20,220,429.60
  6. Step 6: Final answer
    x = 20,588,871.60

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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.