Home / 28,003,780.80-42,005,671.20-6,728,644.80

Finding the Fourth Proportional to 28,003,780.80, 42,005,671.20 and 6,728,644.80

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Solution

The fourth proportional to 28,003,780.80, 42,005,671.20 and 6,728,644.80 is: 10,092,967.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,003,780.80 : 42,005,671.20 = 6,728,644.80 : x
  2. Step 2: Convert to fraction form
    28,003,780.80/42,005,671.20 = 6,728,644.80/x
  3. Step 3: Cross multiply
    28,003,780.80x = 42,005,671.20 × 6,728,644.80
  4. Step 4: Simplify right side
    28,003,780.80x = 282,641,241,090,389.75
  5. Step 5: Solve for x
    x = 282,641,241,090,389.75/28,003,780.80
  6. Step 6: Final answer
    x = 10,092,967.20

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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.