Home / 30,921,347.70-46,382,021.55-21,851,421.30

Finding the Fourth Proportional to 30,921,347.70, 46,382,021.55 and 21,851,421.30

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Solution

The fourth proportional to 30,921,347.70, 46,382,021.55 and 21,851,421.30 is: 32,777,131.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,921,347.70 : 46,382,021.55 = 21,851,421.30 : x
  2. Step 2: Convert to fraction form
    30,921,347.70/46,382,021.55 = 21,851,421.30/x
  3. Step 3: Cross multiply
    30,921,347.70x = 46,382,021.55 × 21,851,421.30
  4. Step 4: Simplify right side
    30,921,347.70x = 1,013,513,093,634,729
  5. Step 5: Solve for x
    x = 1,013,513,093,634,729/30,921,347.70
  6. Step 6: Final answer
    x = 32,777,131.95

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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.