Home / 5,431,037.81-8,143,486-1,786,781.52

Finding the Fourth Proportional to 5,431,037.81, 8,143,486 and 1,786,781.52

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Solution

The fourth proportional to 5,431,037.81, 8,143,486 and 1,786,781.52 is: 2,679,162.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,431,037.81 : 8,143,486 = 1,786,781.52 : x
  2. Step 2: Convert to fraction form
    5,431,037.81/8,143,486 = 1,786,781.52/x
  3. Step 3: Cross multiply
    5,431,037.81x = 8,143,486 × 1,786,781.52
  4. Step 4: Simplify right side
    5,431,037.81x = 14,550,630,293,178.72
  5. Step 5: Solve for x
    x = 14,550,630,293,178.72/5,431,037.81
  6. Step 6: Final answer
    x = 2,679,162.03

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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.