Home / 28,518,243-39,355,194.54-15,465,497.88

Finding the Fourth Proportional to 28,518,243, 39,355,194.54 and 15,465,497.88

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Solution

The fourth proportional to 28,518,243, 39,355,194.54 and 15,465,497.88 is: 21,342,397.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,518,243 : 39,355,194.54 = 15,465,497.88 : x
  2. Step 2: Convert to fraction form
    28,518,243/39,355,194.54 = 15,465,497.88/x
  3. Step 3: Cross multiply
    28,518,243x = 39,355,194.54 × 15,465,497.88
  4. Step 4: Simplify right side
    28,518,243x = 608,647,677,725,357.62
  5. Step 5: Solve for x
    x = 608,647,677,725,357.62/28,518,243
  6. Step 6: Final answer
    x = 21,342,397.49

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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.