Home / 28,489,823.28-39,315,990.72-15,437,071.98

Finding the Fourth Proportional to 28,489,823.28, 39,315,990.72 and 15,437,071.98

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Solution

The fourth proportional to 28,489,823.28, 39,315,990.72 and 15,437,071.98 is: 21,303,178.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,489,823.28 : 39,315,990.72 = 15,437,071.98 : x
  2. Step 2: Convert to fraction form
    28,489,823.28/39,315,990.72 = 15,437,071.98/x
  3. Step 3: Cross multiply
    28,489,823.28x = 39,315,990.72 × 15,437,071.98
  4. Step 4: Simplify right side
    28,489,823.28x = 606,923,778,709,652
  5. Step 5: Solve for x
    x = 606,923,778,709,652/28,489,823.28
  6. Step 6: Final answer
    x = 21,303,178.08

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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.