Home / 28,536,966.72-42,809,637.60-13,392,429.12

Finding the Fourth Proportional to 28,536,966.72, 42,809,637.60 and 13,392,429.12

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Solution

The fourth proportional to 28,536,966.72, 42,809,637.60 and 13,392,429.12 is: 20,090,608.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,536,966.72 : 42,809,637.60 = 13,392,429.12 : x
  2. Step 2: Convert to fraction form
    28,536,966.72/42,809,637.60 = 13,392,429.12/x
  3. Step 3: Cross multiply
    28,536,966.72x = 42,809,637.60 × 13,392,429.12
  4. Step 4: Simplify right side
    28,536,966.72x = 573,325,037,210,886.88
  5. Step 5: Solve for x
    x = 573,325,037,210,886.88/28,536,966.72
  6. Step 6: Final answer
    x = 20,090,608.89

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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.