Home / 66,366,010.80-99,549,016.20-55,028,602.80

Finding the Fourth Proportional to 66,366,010.80, 99,549,016.20 and 55,028,602.80

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Solution

The fourth proportional to 66,366,010.80, 99,549,016.20 and 55,028,602.80 is: 82,542,904.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,366,010.80 : 99,549,016.20 = 55,028,602.80 : x
  2. Step 2: Convert to fraction form
    66,366,010.80/99,549,016.20 = 55,028,602.80/x
  3. Step 3: Cross multiply
    66,366,010.80x = 99,549,016.20 × 55,028,602.80
  4. Step 4: Simplify right side
    66,366,010.80x = 5,478,043,271,600,565
  5. Step 5: Solve for x
    x = 5,478,043,271,600,565/66,366,010.80
  6. Step 6: Final answer
    x = 82,542,904.20

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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.