Home / 4,867,998.80-7,288,001.40-2,978,430.80

Finding the Fourth Proportional to 4,867,998.80, 7,288,001.40 and 2,978,430.80

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Solution

The fourth proportional to 4,867,998.80, 7,288,001.40 and 2,978,430.80 is: 4,459,082.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,867,998.80 : 7,288,001.40 = 2,978,430.80 : x
  2. Step 2: Convert to fraction form
    4,867,998.80/7,288,001.40 = 2,978,430.80/x
  3. Step 3: Cross multiply
    4,867,998.80x = 7,288,001.40 × 2,978,430.80
  4. Step 4: Simplify right side
    4,867,998.80x = 21,706,807,840,203.12
  5. Step 5: Solve for x
    x = 21,706,807,840,203.12/4,867,998.80
  6. Step 6: Final answer
    x = 4,459,082.41

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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.