Home / 57,911,938.40-86,871,190.57-18,523,651.72

Finding the Fourth Proportional to 57,911,938.40, 86,871,190.57 and 18,523,651.72

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Solution

The fourth proportional to 57,911,938.40, 86,871,190.57 and 18,523,651.72 is: 27,786,527.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,911,938.40 : 86,871,190.57 = 18,523,651.72 : x
  2. Step 2: Convert to fraction form
    57,911,938.40/86,871,190.57 = 18,523,651.72/x
  3. Step 3: Cross multiply
    57,911,938.40x = 86,871,190.57 × 18,523,651.72
  4. Step 4: Simplify right side
    57,911,938.40x = 1,609,171,678,484,952.75
  5. Step 5: Solve for x
    x = 1,609,171,678,484,952.75/57,911,938.40
  6. Step 6: Final answer
    x = 27,786,527.66

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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.