Home / 85,293,127.20-127,939,690.80-56,571,693.60

Finding the Fourth Proportional to 85,293,127.20, 127,939,690.80 and 56,571,693.60

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Solution

The fourth proportional to 85,293,127.20, 127,939,690.80 and 56,571,693.60 is: 84,857,540.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,293,127.20 : 127,939,690.80 = 56,571,693.60 : x
  2. Step 2: Convert to fraction form
    85,293,127.20/127,939,690.80 = 56,571,693.60/x
  3. Step 3: Cross multiply
    85,293,127.20x = 127,939,690.80 × 56,571,693.60
  4. Step 4: Simplify right side
    85,293,127.20x = 7,237,764,987,216,339
  5. Step 5: Solve for x
    x = 7,237,764,987,216,339/85,293,127.20
  6. Step 6: Final answer
    x = 84,857,540.40

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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.