Home / 19,184,420.40-28,776,630.60-13,830,644.40

Finding the Fourth Proportional to 19,184,420.40, 28,776,630.60 and 13,830,644.40

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Solution

The fourth proportional to 19,184,420.40, 28,776,630.60 and 13,830,644.40 is: 20,745,966.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,184,420.40 : 28,776,630.60 = 13,830,644.40 : x
  2. Step 2: Convert to fraction form
    19,184,420.40/28,776,630.60 = 13,830,644.40/x
  3. Step 3: Cross multiply
    19,184,420.40x = 28,776,630.60 × 13,830,644.40
  4. Step 4: Simplify right side
    19,184,420.40x = 397,999,344,858,758.69
  5. Step 5: Solve for x
    x = 397,999,344,858,758.69/19,184,420.40
  6. Step 6: Final answer
    x = 20,745,966.60

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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.