Home / 15,409,057.28-21,263,741.30-8,439,765.24

Finding the Fourth Proportional to 15,409,057.28, 21,263,741.30 and 8,439,765.24

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Solution

The fourth proportional to 15,409,057.28, 21,263,741.30 and 8,439,765.24 is: 11,646,461.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,409,057.28 : 21,263,741.30 = 8,439,765.24 : x
  2. Step 2: Convert to fraction form
    15,409,057.28/21,263,741.30 = 8,439,765.24/x
  3. Step 3: Cross multiply
    15,409,057.28x = 21,263,741.30 × 8,439,765.24
  4. Step 4: Simplify right side
    15,409,057.28x = 179,460,984,653,893.59
  5. Step 5: Solve for x
    x = 179,460,984,653,893.59/15,409,057.28
  6. Step 6: Final answer
    x = 11,646,461.00

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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.