Home / 28,268,889.60-42,411,207.60-13,892,426.40

Finding the Fourth Proportional to 28,268,889.60, 42,411,207.60 and 13,892,426.40

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Solution

The fourth proportional to 28,268,889.60, 42,411,207.60 and 13,892,426.40 is: 20,842,508.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,268,889.60 : 42,411,207.60 = 13,892,426.40 : x
  2. Step 2: Convert to fraction form
    28,268,889.60/42,411,207.60 = 13,892,426.40/x
  3. Step 3: Cross multiply
    28,268,889.60x = 42,411,207.60 × 13,892,426.40
  4. Step 4: Simplify right side
    28,268,889.60x = 589,194,580,118,120.62
  5. Step 5: Solve for x
    x = 589,194,580,118,120.62/28,268,889.60
  6. Step 6: Final answer
    x = 20,842,508.80

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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.