Home / 21,490,501.28-29,656,613.40-11,700,833.36

Finding the Fourth Proportional to 21,490,501.28, 29,656,613.40 and 11,700,833.36

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Solution

The fourth proportional to 21,490,501.28, 29,656,613.40 and 11,700,833.36 is: 16,146,998.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,490,501.28 : 29,656,613.40 = 11,700,833.36 : x
  2. Step 2: Convert to fraction form
    21,490,501.28/29,656,613.40 = 11,700,833.36/x
  3. Step 3: Cross multiply
    21,490,501.28x = 29,656,613.40 × 11,700,833.36
  4. Step 4: Simplify right side
    21,490,501.28x = 347,007,091,415,343
  5. Step 5: Solve for x
    x = 347,007,091,415,343/21,490,501.28
  6. Step 6: Final answer
    x = 16,146,998.48

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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.