Home / 12,138,387.60-18,214,579.80-4,570,784.40

Finding the Fourth Proportional to 12,138,387.60, 18,214,579.80 and 4,570,784.40

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Solution

The fourth proportional to 12,138,387.60, 18,214,579.80 and 4,570,784.40 is: 6,858,811.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,138,387.60 : 18,214,579.80 = 4,570,784.40 : x
  2. Step 2: Convert to fraction form
    12,138,387.60/18,214,579.80 = 4,570,784.40/x
  3. Step 3: Cross multiply
    12,138,387.60x = 18,214,579.80 × 4,570,784.40
  4. Step 4: Simplify right side
    12,138,387.60x = 83,254,917,202,395.12
  5. Step 5: Solve for x
    x = 83,254,917,202,395.12/12,138,387.60
  6. Step 6: Final answer
    x = 6,858,811.89

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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.