Home / 30,802,155.40-42,507,289.40-17,050,824.28

Finding the Fourth Proportional to 30,802,155.40, 42,507,289.40 and 17,050,824.28

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Solution

The fourth proportional to 30,802,155.40, 42,507,289.40 and 17,050,824.28 is: 23,530,311.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,802,155.40 : 42,507,289.40 = 17,050,824.28 : x
  2. Step 2: Convert to fraction form
    30,802,155.40/42,507,289.40 = 17,050,824.28/x
  3. Step 3: Cross multiply
    30,802,155.40x = 42,507,289.40 × 17,050,824.28
  4. Step 4: Simplify right side
    30,802,155.40x = 724,784,322,178,506.62
  5. Step 5: Solve for x
    x = 724,784,322,178,506.62/30,802,155.40
  6. Step 6: Final answer
    x = 23,530,311.85

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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.