Home / 15,432,455.40-21,284,501.22-9,926,462.76

Finding the Fourth Proportional to 15,432,455.40, 21,284,501.22 and 9,926,462.76

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Solution

The fourth proportional to 15,432,455.40, 21,284,501.22 and 9,926,462.76 is: 13,690,615.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,432,455.40 : 21,284,501.22 = 9,926,462.76 : x
  2. Step 2: Convert to fraction form
    15,432,455.40/21,284,501.22 = 9,926,462.76/x
  3. Step 3: Cross multiply
    15,432,455.40x = 21,284,501.22 × 9,926,462.76
  4. Step 4: Simplify right side
    15,432,455.40x = 211,279,808,725,504.56
  5. Step 5: Solve for x
    x = 211,279,808,725,504.56/15,432,455.40
  6. Step 6: Final answer
    x = 13,690,615.22

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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.