Home / 3,918,620.16-5,407,280.28-2,199,929.76

Finding the Fourth Proportional to 3,918,620.16, 5,407,280.28 and 2,199,929.76

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Solution

The fourth proportional to 3,918,620.16, 5,407,280.28 and 2,199,929.76 is: 3,035,669.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,918,620.16 : 5,407,280.28 = 2,199,929.76 : x
  2. Step 2: Convert to fraction form
    3,918,620.16/5,407,280.28 = 2,199,929.76/x
  3. Step 3: Cross multiply
    3,918,620.16x = 5,407,280.28 × 2,199,929.76
  4. Step 4: Simplify right side
    3,918,620.16x = 11,895,636,808,633.13
  5. Step 5: Solve for x
    x = 11,895,636,808,633.13/3,918,620.16
  6. Step 6: Final answer
    x = 3,035,669.78

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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.