Home / 18,715,730.40-28,073,595.60-11,503,879.20

Finding the Fourth Proportional to 18,715,730.40, 28,073,595.60 and 11,503,879.20

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Solution

The fourth proportional to 18,715,730.40, 28,073,595.60 and 11,503,879.20 is: 17,255,818.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,715,730.40 : 28,073,595.60 = 11,503,879.20 : x
  2. Step 2: Convert to fraction form
    18,715,730.40/28,073,595.60 = 11,503,879.20/x
  3. Step 3: Cross multiply
    18,715,730.40x = 28,073,595.60 × 11,503,879.20
  4. Step 4: Simplify right side
    18,715,730.40x = 322,955,252,492,051.50
  5. Step 5: Solve for x
    x = 322,955,252,492,051.50/18,715,730.40
  6. Step 6: Final answer
    x = 17,255,818.80

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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.