Home / 21,458,433.56-29,613,417.02-12,292,847.78

Finding the Fourth Proportional to 21,458,433.56, 29,613,417.02 and 12,292,847.78

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Solution

The fourth proportional to 21,458,433.56, 29,613,417.02 and 12,292,847.78 is: 16,964,576.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,458,433.56 : 29,613,417.02 = 12,292,847.78 : x
  2. Step 2: Convert to fraction form
    21,458,433.56/29,613,417.02 = 12,292,847.78/x
  3. Step 3: Cross multiply
    21,458,433.56x = 29,613,417.02 × 12,292,847.78
  4. Step 4: Simplify right side
    21,458,433.56x = 364,033,227,672,521.19
  5. Step 5: Solve for x
    x = 364,033,227,672,521.19/21,458,433.56
  6. Step 6: Final answer
    x = 16,964,576.03

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1.5x scale

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.