Home / 8,629,986.47-11,909,666.72-4,709,956.55

Finding the Fourth Proportional to 8,629,986.47, 11,909,666.72 and 4,709,956.55

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Solution

The fourth proportional to 8,629,986.47, 11,909,666.72 and 4,709,956.55 is: 6,499,895.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,629,986.47 : 11,909,666.72 = 4,709,956.55 : x
  2. Step 2: Convert to fraction form
    8,629,986.47/11,909,666.72 = 4,709,956.55/x
  3. Step 3: Cross multiply
    8,629,986.47x = 11,909,666.72 × 4,709,956.55
  4. Step 4: Simplify right side
    8,629,986.47x = 56,094,012,728,407.57
  5. Step 5: Solve for x
    x = 56,094,012,728,407.57/8,629,986.47
  6. Step 6: Final answer
    x = 6,499,895.79

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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.