Home / 21,185,999.80-31,778,999.70-16,403,030.80

Finding the Fourth Proportional to 21,185,999.80, 31,778,999.70 and 16,403,030.80

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Solution

The fourth proportional to 21,185,999.80, 31,778,999.70 and 16,403,030.80 is: 24,604,546.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,185,999.80 : 31,778,999.70 = 16,403,030.80 : x
  2. Step 2: Convert to fraction form
    21,185,999.80/31,778,999.70 = 16,403,030.80/x
  3. Step 3: Cross multiply
    21,185,999.80x = 31,778,999.70 × 16,403,030.80
  4. Step 4: Simplify right side
    21,185,999.80x = 521,271,910,872,290.75
  5. Step 5: Solve for x
    x = 521,271,910,872,290.75/21,185,999.80
  6. Step 6: Final answer
    x = 24,604,546.20

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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.