Home / 492,528,139.20-738,792,208.80-129,059,236.80

Finding the Fourth Proportional to 492,528,139.20, 738,792,208.80 and 129,059,236.80

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Solution

The fourth proportional to 492,528,139.20, 738,792,208.80 and 129,059,236.80 is: 193,588,855.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,528,139.20 : 738,792,208.80 = 129,059,236.80 : x
  2. Step 2: Convert to fraction form
    492,528,139.20/738,792,208.80 = 129,059,236.80/x
  3. Step 3: Cross multiply
    492,528,139.20x = 738,792,208.80 × 129,059,236.80
  4. Step 4: Simplify right side
    492,528,139.20x = 95,347,958,621,514,240
  5. Step 5: Solve for x
    x = 95,347,958,621,514,240/492,528,139.20
  6. Step 6: Final answer
    x = 193,588,855.20

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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.