Home / 28,340,039.80-42,510,059.70-9,172,734.40

Finding the Fourth Proportional to 28,340,039.80, 42,510,059.70 and 9,172,734.40

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Solution

The fourth proportional to 28,340,039.80, 42,510,059.70 and 9,172,734.40 is: 13,759,101.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,340,039.80 : 42,510,059.70 = 9,172,734.40 : x
  2. Step 2: Convert to fraction form
    28,340,039.80/42,510,059.70 = 9,172,734.40/x
  3. Step 3: Cross multiply
    28,340,039.80x = 42,510,059.70 × 9,172,734.40
  4. Step 4: Simplify right side
    28,340,039.80x = 389,933,486,956,243.75
  5. Step 5: Solve for x
    x = 389,933,486,956,243.75/28,340,039.80
  6. Step 6: Final answer
    x = 13,759,101.60

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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.