Home / 8,702,824.40-12,010,221.79-5,218,730.42

Finding the Fourth Proportional to 8,702,824.40, 12,010,221.79 and 5,218,730.42

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Solution

The fourth proportional to 8,702,824.40, 12,010,221.79 and 5,218,730.42 is: 7,202,042.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,702,824.40 : 12,010,221.79 = 5,218,730.42 : x
  2. Step 2: Convert to fraction form
    8,702,824.40/12,010,221.79 = 5,218,730.42/x
  3. Step 3: Cross multiply
    8,702,824.40x = 12,010,221.79 × 5,218,730.42
  4. Step 4: Simplify right side
    8,702,824.40x = 62,678,109,830,234.77
  5. Step 5: Solve for x
    x = 62,678,109,830,234.77/8,702,824.40
  6. Step 6: Final answer
    x = 7,202,042.34

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1.5x scale

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.