Home / 8,613,188.02-12,921,619.11-4,297,558.78

Finding the Fourth Proportional to 8,613,188.02, 12,921,619.11 and 4,297,558.78

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Solution

The fourth proportional to 8,613,188.02, 12,921,619.11 and 4,297,558.78 is: 6,447,254.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,613,188.02 : 12,921,619.11 = 4,297,558.78 : x
  2. Step 2: Convert to fraction form
    8,613,188.02/12,921,619.11 = 4,297,558.78/x
  3. Step 3: Cross multiply
    8,613,188.02x = 12,921,619.11 × 4,297,558.78
  4. Step 4: Simplify right side
    8,613,188.02x = 55,531,417,657,996.29
  5. Step 5: Solve for x
    x = 55,531,417,657,996.29/8,613,188.02
  6. Step 6: Final answer
    x = 6,447,254.78

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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.