Home / 21,121,334.60-29,142,446.02-11,953,977.35

Finding the Fourth Proportional to 21,121,334.60, 29,142,446.02 and 11,953,977.35

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Solution

The fourth proportional to 21,121,334.60, 29,142,446.02 and 11,953,977.35 is: 16,493,661.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,121,334.60 : 29,142,446.02 = 11,953,977.35 : x
  2. Step 2: Convert to fraction form
    21,121,334.60/29,142,446.02 = 11,953,977.35/x
  3. Step 3: Cross multiply
    21,121,334.60x = 29,142,446.02 × 11,953,977.35
  4. Step 4: Simplify right side
    21,121,334.60x = 348,368,139,471,080.50
  5. Step 5: Solve for x
    x = 348,368,139,471,080.50/21,121,334.60
  6. Step 6: Final answer
    x = 16,493,661.32

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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.