Home / 13,465,865.40-18,583,013.16-7,665,020.70

Finding the Fourth Proportional to 13,465,865.40, 18,583,013.16 and 7,665,020.70

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Solution

The fourth proportional to 13,465,865.40, 18,583,013.16 and 7,665,020.70 is: 10,577,796.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,465,865.40 : 18,583,013.16 = 7,665,020.70 : x
  2. Step 2: Convert to fraction form
    13,465,865.40/18,583,013.16 = 7,665,020.70/x
  3. Step 3: Cross multiply
    13,465,865.40x = 18,583,013.16 × 7,665,020.70
  4. Step 4: Simplify right side
    13,465,865.40x = 142,439,180,539,772.41
  5. Step 5: Solve for x
    x = 142,439,180,539,772.41/13,465,865.40
  6. Step 6: Final answer
    x = 10,577,796.25

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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.