Home / 20,537,154.63-28,341,280.08-11,245,313.52

Finding the Fourth Proportional to 20,537,154.63, 28,341,280.08 and 11,245,313.52

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Solution

The fourth proportional to 20,537,154.63, 28,341,280.08 and 11,245,313.52 is: 15,518,536.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,537,154.63 : 28,341,280.08 = 11,245,313.52 : x
  2. Step 2: Convert to fraction form
    20,537,154.63/28,341,280.08 = 11,245,313.52/x
  3. Step 3: Cross multiply
    20,537,154.63x = 28,341,280.08 × 11,245,313.52
  4. Step 4: Simplify right side
    20,537,154.63x = 318,706,580,057,730.62
  5. Step 5: Solve for x
    x = 318,706,580,057,730.62/20,537,154.63
  6. Step 6: Final answer
    x = 15,518,536.32

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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.