Home / 8,124,443.49-11,205,194.63-7,142,282.58

Finding the Fourth Proportional to 8,124,443.49, 11,205,194.63 and 7,142,282.58

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Solution

The fourth proportional to 8,124,443.49, 11,205,194.63 and 7,142,282.58 is: 9,850,602.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,124,443.49 : 11,205,194.63 = 7,142,282.58 : x
  2. Step 2: Convert to fraction form
    8,124,443.49/11,205,194.63 = 7,142,282.58/x
  3. Step 3: Cross multiply
    8,124,443.49x = 11,205,194.63 × 7,142,282.58
  4. Step 4: Simplify right side
    8,124,443.49x = 80,030,666,375,647.14
  5. Step 5: Solve for x
    x = 80,030,666,375,647.14/8,124,443.49
  6. Step 6: Final answer
    x = 9,850,602.87

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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.