Home / 280,229,443.56-420,384,282.48-86,157,156.60

Finding the Fourth Proportional to 280,229,443.56, 420,384,282.48 and 86,157,156.60

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Solution

The fourth proportional to 280,229,443.56, 420,384,282.48 and 86,157,156.60 is: 129,248,069.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,229,443.56 : 420,384,282.48 = 86,157,156.60 : x
  2. Step 2: Convert to fraction form
    280,229,443.56/420,384,282.48 = 86,157,156.60/x
  3. Step 3: Cross multiply
    280,229,443.56x = 420,384,282.48 × 86,157,156.60
  4. Step 4: Simplify right side
    280,229,443.56x = 36,219,114,457,807,992
  5. Step 5: Solve for x
    x = 36,219,114,457,807,992/280,229,443.56
  6. Step 6: Final answer
    x = 129,248,069.00

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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.