Home / 20,537,688.33-28,341,905.95-11,245,089.57

Finding the Fourth Proportional to 20,537,688.33, 28,341,905.95 and 11,245,089.57

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Solution

The fourth proportional to 20,537,688.33, 28,341,905.95 and 11,245,089.57 is: 15,518,166.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,537,688.33 : 28,341,905.95 = 11,245,089.57 : x
  2. Step 2: Convert to fraction form
    20,537,688.33/28,341,905.95 = 11,245,089.57/x
  3. Step 3: Cross multiply
    20,537,688.33x = 28,341,905.95 × 11,245,089.57
  4. Step 4: Simplify right side
    20,537,688.33x = 318,707,270,868,418.94
  5. Step 5: Solve for x
    x = 318,707,270,868,418.94/20,537,688.33
  6. Step 6: Final answer
    x = 15,518,166.68

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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.