Home / 328,028,263.20-492,047,643.60-85,691,167.20

Finding the Fourth Proportional to 328,028,263.20, 492,047,643.60 and 85,691,167.20

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Solution

The fourth proportional to 328,028,263.20, 492,047,643.60 and 85,691,167.20 is: 128,538,121.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,028,263.20 : 492,047,643.60 = 85,691,167.20 : x
  2. Step 2: Convert to fraction form
    328,028,263.20/492,047,643.60 = 85,691,167.20/x
  3. Step 3: Cross multiply
    328,028,263.20x = 492,047,643.60 × 85,691,167.20
  4. Step 4: Simplify right side
    328,028,263.20x = 42,164,136,898,093,616
  5. Step 5: Solve for x
    x = 42,164,136,898,093,616/328,028,263.20
  6. Step 6: Final answer
    x = 128,538,121.95

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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.