Home / 2,815,607.69-3,888,746.21-1,908,615.05

Finding the Fourth Proportional to 2,815,607.69, 3,888,746.21 and 1,908,615.05

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Solution

The fourth proportional to 2,815,607.69, 3,888,746.21 and 1,908,615.05 is: 2,636,063.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,815,607.69 : 3,888,746.21 = 1,908,615.05 : x
  2. Step 2: Convert to fraction form
    2,815,607.69/3,888,746.21 = 1,908,615.05/x
  3. Step 3: Cross multiply
    2,815,607.69x = 3,888,746.21 × 1,908,615.05
  4. Step 4: Simplify right side
    2,815,607.69x = 7,422,119,542,036.46
  5. Step 5: Solve for x
    x = 7,422,119,542,036.46/2,815,607.69
  6. Step 6: Final answer
    x = 2,636,063.10

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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.