Home / 20,463,420-28,238,526.72-11,642,040.48

Finding the Fourth Proportional to 20,463,420, 28,238,526.72 and 11,642,040.48

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Solution

The fourth proportional to 20,463,420, 28,238,526.72 and 11,642,040.48 is: 16,065,450.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,463,420 : 28,238,526.72 = 11,642,040.48 : x
  2. Step 2: Convert to fraction form
    20,463,420/28,238,526.72 = 11,642,040.48/x
  3. Step 3: Cross multiply
    20,463,420x = 28,238,526.72 × 11,642,040.48
  4. Step 4: Simplify right side
    20,463,420x = 328,754,071,169,801.62
  5. Step 5: Solve for x
    x = 328,754,071,169,801.62/20,463,420
  6. Step 6: Final answer
    x = 16,065,450.99

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1.5x scale

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.