Home / 5,429,024.51-8,143,529.90-1,385,512.45

Finding the Fourth Proportional to 5,429,024.51, 8,143,529.90 and 1,385,512.45

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Solution

The fourth proportional to 5,429,024.51, 8,143,529.90 and 1,385,512.45 is: 2,078,266.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,429,024.51 : 8,143,529.90 = 1,385,512.45 : x
  2. Step 2: Convert to fraction form
    5,429,024.51/8,143,529.90 = 1,385,512.45/x
  3. Step 3: Cross multiply
    5,429,024.51x = 8,143,529.90 × 1,385,512.45
  4. Step 4: Simplify right side
    5,429,024.51x = 11,282,962,036,110.87
  5. Step 5: Solve for x
    x = 11,282,962,036,110.87/5,429,024.51
  6. Step 6: Final answer
    x = 2,078,266.92

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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.