Home / 18,886,577.70-28,329,866.55-12,084,132.90

Finding the Fourth Proportional to 18,886,577.70, 28,329,866.55 and 12,084,132.90

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Solution

The fourth proportional to 18,886,577.70, 28,329,866.55 and 12,084,132.90 is: 18,126,199.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,886,577.70 : 28,329,866.55 = 12,084,132.90 : x
  2. Step 2: Convert to fraction form
    18,886,577.70/28,329,866.55 = 12,084,132.90/x
  3. Step 3: Cross multiply
    18,886,577.70x = 28,329,866.55 × 12,084,132.90
  4. Step 4: Simplify right side
    18,886,577.70x = 342,341,872,429,464.50
  5. Step 5: Solve for x
    x = 342,341,872,429,464.50/18,886,577.70
  6. Step 6: Final answer
    x = 18,126,199.35

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.