Home / 28,430,359.84-42,650,855.28-11,392,361.20

Finding the Fourth Proportional to 28,430,359.84, 42,650,855.28 and 11,392,361.20

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Solution

The fourth proportional to 28,430,359.84, 42,650,855.28 and 11,392,361.20 is: 17,090,671.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,430,359.84 : 42,650,855.28 = 11,392,361.20 : x
  2. Step 2: Convert to fraction form
    28,430,359.84/42,650,855.28 = 11,392,361.20/x
  3. Step 3: Cross multiply
    28,430,359.84x = 42,650,855.28 × 11,392,361.20
  4. Step 4: Simplify right side
    28,430,359.84x = 485,893,948,838,687.12
  5. Step 5: Solve for x
    x = 485,893,948,838,687.12/28,430,359.84
  6. Step 6: Final answer
    x = 17,090,671.79

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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.