Home / 492,043,383.30-738,072,948.15-128,537,739.30

Finding the Fourth Proportional to 492,043,383.30, 738,072,948.15 and 128,537,739.30

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Solution

The fourth proportional to 492,043,383.30, 738,072,948.15 and 128,537,739.30 is: 192,808,665.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,043,383.30 : 738,072,948.15 = 128,537,739.30 : x
  2. Step 2: Convert to fraction form
    492,043,383.30/738,072,948.15 = 128,537,739.30/x
  3. Step 3: Cross multiply
    492,043,383.30x = 738,072,948.15 × 128,537,739.30
  4. Step 4: Simplify right side
    492,043,383.30x = 94,870,228,193,687,120
  5. Step 5: Solve for x
    x = 94,870,228,193,687,120/492,043,383.30
  6. Step 6: Final answer
    x = 192,808,665.69

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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.