Home / 5,111,981.40-7,665,056.10-1,917,211.80

Finding the Fourth Proportional to 5,111,981.40, 7,665,056.10 and 1,917,211.80

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Solution

The fourth proportional to 5,111,981.40, 7,665,056.10 and 1,917,211.80 is: 2,874,724.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,111,981.40 : 7,665,056.10 = 1,917,211.80 : x
  2. Step 2: Convert to fraction form
    5,111,981.40/7,665,056.10 = 1,917,211.80/x
  3. Step 3: Cross multiply
    5,111,981.40x = 7,665,056.10 × 1,917,211.80
  4. Step 4: Simplify right side
    5,111,981.40x = 14,695,536,002,581.98
  5. Step 5: Solve for x
    x = 14,695,536,002,581.98/5,111,981.40
  6. Step 6: Final answer
    x = 2,874,724.08

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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.