Home / 20,224,235.10-30,336,352.65-13,421,790.30

Finding the Fourth Proportional to 20,224,235.10, 30,336,352.65 and 13,421,790.30

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Solution

The fourth proportional to 20,224,235.10, 30,336,352.65 and 13,421,790.30 is: 20,132,685.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,224,235.10 : 30,336,352.65 = 13,421,790.30 : x
  2. Step 2: Convert to fraction form
    20,224,235.10/30,336,352.65 = 13,421,790.30/x
  3. Step 3: Cross multiply
    20,224,235.10x = 30,336,352.65 × 13,421,790.30
  4. Step 4: Simplify right side
    20,224,235.10x = 407,168,163,735,149.31
  5. Step 5: Solve for x
    x = 407,168,163,735,149.31/20,224,235.10
  6. Step 6: Final answer
    x = 20,132,685.45

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Double scale
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Similar ratio
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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.