Home / 7,112,421.60-10,637,139.60-5,978,680.80

Finding the Fourth Proportional to 7,112,421.60, 10,637,139.60 and 5,978,680.80

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Solution

The fourth proportional to 7,112,421.60, 10,637,139.60 and 5,978,680.80 is: 8,941,548.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,112,421.60 : 10,637,139.60 = 5,978,680.80 : x
  2. Step 2: Convert to fraction form
    7,112,421.60/10,637,139.60 = 5,978,680.80/x
  3. Step 3: Cross multiply
    7,112,421.60x = 10,637,139.60 × 5,978,680.80
  4. Step 4: Simplify right side
    7,112,421.60x = 63,596,062,293,439.68
  5. Step 5: Solve for x
    x = 63,596,062,293,439.68/7,112,421.60
  6. Step 6: Final answer
    x = 8,941,548.44

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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.