Home / 30,509,764.80-45,727,322.40-13,452,331.20

Finding the Fourth Proportional to 30,509,764.80, 45,727,322.40 and 13,452,331.20

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Solution

The fourth proportional to 30,509,764.80, 45,727,322.40 and 13,452,331.20 is: 20,162,039.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,509,764.80 : 45,727,322.40 = 13,452,331.20 : x
  2. Step 2: Convert to fraction form
    30,509,764.80/45,727,322.40 = 13,452,331.20/x
  3. Step 3: Cross multiply
    30,509,764.80x = 45,727,322.40 × 13,452,331.20
  4. Step 4: Simplify right side
    30,509,764.80x = 615,139,085,813,978.88
  5. Step 5: Solve for x
    x = 615,139,085,813,978.88/30,509,764.80
  6. Step 6: Final answer
    x = 20,162,039.59

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.