Home / 28,159,634-38,860,294.92-15,282,578

Finding the Fourth Proportional to 28,159,634, 38,860,294.92 and 15,282,578

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Solution

The fourth proportional to 28,159,634, 38,860,294.92 and 15,282,578 is: 21,089,957.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,159,634 : 38,860,294.92 = 15,282,578 : x
  2. Step 2: Convert to fraction form
    28,159,634/38,860,294.92 = 15,282,578/x
  3. Step 3: Cross multiply
    28,159,634x = 38,860,294.92 × 15,282,578
  4. Step 4: Simplify right side
    28,159,634x = 593,885,488,217,903.75
  5. Step 5: Solve for x
    x = 593,885,488,217,903.75/28,159,634
  6. Step 6: Final answer
    x = 21,089,957.64

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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.