Home / 30,581,990.70-42,201,623.07-16,830,601.26

Finding the Fourth Proportional to 30,581,990.70, 42,201,623.07 and 16,830,601.26

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Solution

The fourth proportional to 30,581,990.70, 42,201,623.07 and 16,830,601.26 is: 23,225,390.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,581,990.70 : 42,201,623.07 = 16,830,601.26 : x
  2. Step 2: Convert to fraction form
    30,581,990.70/42,201,623.07 = 16,830,601.26/x
  3. Step 3: Cross multiply
    30,581,990.70x = 42,201,623.07 × 16,830,601.26
  4. Step 4: Simplify right side
    30,581,990.70x = 710,278,690,415,987.12
  5. Step 5: Solve for x
    x = 710,278,690,415,987.12/30,581,990.70
  6. Step 6: Final answer
    x = 23,225,390.96

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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.