Home / 28,607,888.36-39,478,611.72-15,555,151.86

Finding the Fourth Proportional to 28,607,888.36, 39,478,611.72 and 15,555,151.86

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Solution

The fourth proportional to 28,607,888.36, 39,478,611.72 and 15,555,151.86 is: 21,465,960.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,607,888.36 : 39,478,611.72 = 15,555,151.86 : x
  2. Step 2: Convert to fraction form
    28,607,888.36/39,478,611.72 = 15,555,151.86/x
  3. Step 3: Cross multiply
    28,607,888.36x = 39,478,611.72 × 15,555,151.86
  4. Step 4: Simplify right side
    28,607,888.36x = 614,095,800,526,575.75
  5. Step 5: Solve for x
    x = 614,095,800,526,575.75/28,607,888.36
  6. Step 6: Final answer
    x = 21,465,960.47

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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.