Home / 19,431,390.40-29,147,085.60-18,871,518.40

Finding the Fourth Proportional to 19,431,390.40, 29,147,085.60 and 18,871,518.40

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Solution

The fourth proportional to 19,431,390.40, 29,147,085.60 and 18,871,518.40 is: 28,307,277.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,431,390.40 : 29,147,085.60 = 18,871,518.40 : x
  2. Step 2: Convert to fraction form
    19,431,390.40/29,147,085.60 = 18,871,518.40/x
  3. Step 3: Cross multiply
    19,431,390.40x = 29,147,085.60 × 18,871,518.40
  4. Step 4: Simplify right side
    19,431,390.40x = 550,049,762,206,775
  5. Step 5: Solve for x
    x = 550,049,762,206,775/19,431,390.40
  6. Step 6: Final answer
    x = 28,307,277.60

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Similar ratio
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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.