Home / 14,208,164.40-21,312,246.60-12,438,692.40

Finding the Fourth Proportional to 14,208,164.40, 21,312,246.60 and 12,438,692.40

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Solution

The fourth proportional to 14,208,164.40, 21,312,246.60 and 12,438,692.40 is: 18,658,038.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,208,164.40 : 21,312,246.60 = 12,438,692.40 : x
  2. Step 2: Convert to fraction form
    14,208,164.40/21,312,246.60 = 12,438,692.40/x
  3. Step 3: Cross multiply
    14,208,164.40x = 21,312,246.60 × 12,438,692.40
  4. Step 4: Simplify right side
    14,208,164.40x = 265,096,479,810,345.88
  5. Step 5: Solve for x
    x = 265,096,479,810,345.88/14,208,164.40
  6. Step 6: Final answer
    x = 18,658,038.60

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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.