Home / 28,877,441.12-39,850,896.60-15,824,728.88

Finding the Fourth Proportional to 28,877,441.12, 39,850,896.60 and 15,824,728.88

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Solution

The fourth proportional to 28,877,441.12, 39,850,896.60 and 15,824,728.88 is: 21,838,141.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,877,441.12 : 39,850,896.60 = 15,824,728.88 : x
  2. Step 2: Convert to fraction form
    28,877,441.12/39,850,896.60 = 15,824,728.88/x
  3. Step 3: Cross multiply
    28,877,441.12x = 39,850,896.60 × 15,824,728.88
  4. Step 4: Simplify right side
    28,877,441.12x = 630,629,634,319,913.88
  5. Step 5: Solve for x
    x = 630,629,634,319,913.88/28,877,441.12
  6. Step 6: Final answer
    x = 21,838,141.12

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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.