Home / 30,456,428.88-42,035,245.10-18,073,350.09

Finding the Fourth Proportional to 30,456,428.88, 42,035,245.10 and 18,073,350.09

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Solution

The fourth proportional to 30,456,428.88, 42,035,245.10 and 18,073,350.09 is: 24,944,411.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,456,428.88 : 42,035,245.10 = 18,073,350.09 : x
  2. Step 2: Convert to fraction form
    30,456,428.88/42,035,245.10 = 18,073,350.09/x
  3. Step 3: Cross multiply
    30,456,428.88x = 42,035,245.10 × 18,073,350.09
  4. Step 4: Simplify right side
    30,456,428.88x = 759,717,700,720,890.25
  5. Step 5: Solve for x
    x = 759,717,700,720,890.25/30,456,428.88
  6. Step 6: Final answer
    x = 24,944,411.69

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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.