Home / 7,129,206.40-10,693,809.60-3,940,560.40

Finding the Fourth Proportional to 7,129,206.40, 10,693,809.60 and 3,940,560.40

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Solution

The fourth proportional to 7,129,206.40, 10,693,809.60 and 3,940,560.40 is: 5,910,840.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,129,206.40 : 10,693,809.60 = 3,940,560.40 : x
  2. Step 2: Convert to fraction form
    7,129,206.40/10,693,809.60 = 3,940,560.40/x
  3. Step 3: Cross multiply
    7,129,206.40x = 10,693,809.60 × 3,940,560.40
  4. Step 4: Simplify right side
    7,129,206.40x = 42,139,602,634,899.84
  5. Step 5: Solve for x
    x = 42,139,602,634,899.84/7,129,206.40
  6. Step 6: Final answer
    x = 5,910,840.60

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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.