Home / 28,621,056.64-42,931,584.96-19,618,314.88

Finding the Fourth Proportional to 28,621,056.64, 42,931,584.96 and 19,618,314.88

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Solution

The fourth proportional to 28,621,056.64, 42,931,584.96 and 19,618,314.88 is: 29,427,472.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,621,056.64 : 42,931,584.96 = 19,618,314.88 : x
  2. Step 2: Convert to fraction form
    28,621,056.64/42,931,584.96 = 19,618,314.88/x
  3. Step 3: Cross multiply
    28,621,056.64x = 42,931,584.96 × 19,618,314.88
  4. Step 4: Simplify right side
    28,621,056.64x = 842,245,352,042,752.12
  5. Step 5: Solve for x
    x = 842,245,352,042,752.12/28,621,056.64
  6. Step 6: Final answer
    x = 29,427,472.32

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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.