Home / 8,083,541.40-12,128,519.70-3,291,581.40

Finding the Fourth Proportional to 8,083,541.40, 12,128,519.70 and 3,291,581.40

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Solution

The fourth proportional to 8,083,541.40, 12,128,519.70 and 3,291,581.40 is: 4,938,678.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,083,541.40 : 12,128,519.70 = 3,291,581.40 : x
  2. Step 2: Convert to fraction form
    8,083,541.40/12,128,519.70 = 3,291,581.40/x
  3. Step 3: Cross multiply
    8,083,541.40x = 12,128,519.70 × 3,291,581.40
  4. Step 4: Simplify right side
    8,083,541.40x = 39,922,009,854,053.58
  5. Step 5: Solve for x
    x = 39,922,009,854,053.58/8,083,541.40
  6. Step 6: Final answer
    x = 4,938,678.22

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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.