Home / 7,020,009.70-10,530,014.55-3,986,203.30

Finding the Fourth Proportional to 7,020,009.70, 10,530,014.55 and 3,986,203.30

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Solution

The fourth proportional to 7,020,009.70, 10,530,014.55 and 3,986,203.30 is: 5,979,304.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,020,009.70 : 10,530,014.55 = 3,986,203.30 : x
  2. Step 2: Convert to fraction form
    7,020,009.70/10,530,014.55 = 3,986,203.30/x
  3. Step 3: Cross multiply
    7,020,009.70x = 10,530,014.55 × 3,986,203.30
  4. Step 4: Simplify right side
    7,020,009.70x = 41,974,778,748,258.02
  5. Step 5: Solve for x
    x = 41,974,778,748,258.02/7,020,009.70
  6. Step 6: Final answer
    x = 5,979,304.95

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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.