Home / 14,120,324.64-19,485,433.80-7,840,460.88

Finding the Fourth Proportional to 14,120,324.64, 19,485,433.80 and 7,840,460.88

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Solution

The fourth proportional to 14,120,324.64, 19,485,433.80 and 7,840,460.88 is: 10,819,494.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,120,324.64 : 19,485,433.80 = 7,840,460.88 : x
  2. Step 2: Convert to fraction form
    14,120,324.64/19,485,433.80 = 7,840,460.88/x
  3. Step 3: Cross multiply
    14,120,324.64x = 19,485,433.80 × 7,840,460.88
  4. Step 4: Simplify right side
    14,120,324.64x = 152,774,781,438,729.75
  5. Step 5: Solve for x
    x = 152,774,781,438,729.75/14,120,324.64
  6. Step 6: Final answer
    x = 10,819,494.97

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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.