Home / 28,871,530.20-39,843,703.44-15,818,749.56

Finding the Fourth Proportional to 28,871,530.20, 39,843,703.44 and 15,818,749.56

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Solution

The fourth proportional to 28,871,530.20, 39,843,703.44 and 15,818,749.56 is: 21,830,417.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,871,530.20 : 39,843,703.44 = 15,818,749.56 : x
  2. Step 2: Convert to fraction form
    28,871,530.20/39,843,703.44 = 15,818,749.56/x
  3. Step 3: Cross multiply
    28,871,530.20x = 39,843,703.44 × 15,818,749.56
  4. Step 4: Simplify right side
    28,871,530.20x = 630,277,566,260,270.50
  5. Step 5: Solve for x
    x = 630,277,566,260,270.50/28,871,530.20
  6. Step 6: Final answer
    x = 21,830,417.78

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.