Home / 28,342,525.20-42,513,787.80-12,165,723.60

Finding the Fourth Proportional to 28,342,525.20, 42,513,787.80 and 12,165,723.60

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Solution

The fourth proportional to 28,342,525.20, 42,513,787.80 and 12,165,723.60 is: 18,248,585.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,342,525.20 : 42,513,787.80 = 12,165,723.60 : x
  2. Step 2: Convert to fraction form
    28,342,525.20/42,513,787.80 = 12,165,723.60/x
  3. Step 3: Cross multiply
    28,342,525.20x = 42,513,787.80 × 12,165,723.60
  4. Step 4: Simplify right side
    28,342,525.20x = 517,210,991,563,852
  5. Step 5: Solve for x
    x = 517,210,991,563,852/28,342,525.20
  6. Step 6: Final answer
    x = 18,248,585.40

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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.