Home / 18,720,303.60-28,080,455.40-4,536,879.60

Finding the Fourth Proportional to 18,720,303.60, 28,080,455.40 and 4,536,879.60

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Solution

The fourth proportional to 18,720,303.60, 28,080,455.40 and 4,536,879.60 is: 6,805,319.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,720,303.60 : 28,080,455.40 = 4,536,879.60 : x
  2. Step 2: Convert to fraction form
    18,720,303.60/28,080,455.40 = 4,536,879.60/x
  3. Step 3: Cross multiply
    18,720,303.60x = 28,080,455.40 × 4,536,879.60
  4. Step 4: Simplify right side
    18,720,303.60x = 127,397,645,262,969.83
  5. Step 5: Solve for x
    x = 127,397,645,262,969.83/18,720,303.60
  6. Step 6: Final answer
    x = 6,805,319.40

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1.5x scale

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.