Home / 9,729,801.81-13,427,406.73-5,379,168.39

Finding the Fourth Proportional to 9,729,801.81, 13,427,406.73 and 5,379,168.39

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Solution

The fourth proportional to 9,729,801.81, 13,427,406.73 and 5,379,168.39 is: 7,423,407.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,729,801.81 : 13,427,406.73 = 5,379,168.39 : x
  2. Step 2: Convert to fraction form
    9,729,801.81/13,427,406.73 = 5,379,168.39/x
  3. Step 3: Cross multiply
    9,729,801.81x = 13,427,406.73 × 5,379,168.39
  4. Step 4: Simplify right side
    9,729,801.81x = 72,228,281,782,934.23
  5. Step 5: Solve for x
    x = 72,228,281,782,934.23/9,729,801.81
  6. Step 6: Final answer
    x = 7,423,407.30

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1.5x scale

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.