Home / 21,186,187.80-31,779,281.70-16,403,218.80

Finding the Fourth Proportional to 21,186,187.80, 31,779,281.70 and 16,403,218.80

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Solution

The fourth proportional to 21,186,187.80, 31,779,281.70 and 16,403,218.80 is: 24,604,828.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,186,187.80 : 31,779,281.70 = 16,403,218.80 : x
  2. Step 2: Convert to fraction form
    21,186,187.80/31,779,281.70 = 16,403,218.80/x
  3. Step 3: Cross multiply
    21,186,187.80x = 31,779,281.70 × 16,403,218.80
  4. Step 4: Simplify right side
    21,186,187.80x = 521,282,511,031,936
  5. Step 5: Solve for x
    x = 521,282,511,031,936/21,186,187.80
  6. Step 6: Final answer
    x = 24,604,828.20

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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.