Home / 30,618,988.20-45,928,482.30-28,174,359.60

Finding the Fourth Proportional to 30,618,988.20, 45,928,482.30 and 28,174,359.60

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Solution

The fourth proportional to 30,618,988.20, 45,928,482.30 and 28,174,359.60 is: 42,261,539.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,618,988.20 : 45,928,482.30 = 28,174,359.60 : x
  2. Step 2: Convert to fraction form
    30,618,988.20/45,928,482.30 = 28,174,359.60/x
  3. Step 3: Cross multiply
    30,618,988.20x = 45,928,482.30 × 28,174,359.60
  4. Step 4: Simplify right side
    30,618,988.20x = 1,294,005,576,202,435
  5. Step 5: Solve for x
    x = 1,294,005,576,202,435/30,618,988.20
  6. Step 6: Final answer
    x = 42,261,539.40

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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.