Home / 21,657,783.85-29,887,742.02-11,868,613.29

Finding the Fourth Proportional to 21,657,783.85, 29,887,742.02 and 11,868,613.29

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Solution

The fourth proportional to 21,657,783.85, 29,887,742.02 and 11,868,613.29 is: 16,378,686.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,657,783.85 : 29,887,742.02 = 11,868,613.29 : x
  2. Step 2: Convert to fraction form
    21,657,783.85/29,887,742.02 = 11,868,613.29/x
  3. Step 3: Cross multiply
    21,657,783.85x = 29,887,742.02 × 11,868,613.29
  4. Step 4: Simplify right side
    21,657,783.85x = 354,726,052,146,663.44
  5. Step 5: Solve for x
    x = 354,726,052,146,663.44/21,657,783.85
  6. Step 6: Final answer
    x = 16,378,686.51

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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.