Home / 492,043,455.80-738,073,056.90-128,537,811.80

Finding the Fourth Proportional to 492,043,455.80, 738,073,056.90 and 128,537,811.80

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Solution

The fourth proportional to 492,043,455.80, 738,073,056.90 and 128,537,811.80 is: 192,808,774.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,043,455.80 : 738,073,056.90 = 128,537,811.80 : x
  2. Step 2: Convert to fraction form
    492,043,455.80/738,073,056.90 = 128,537,811.80/x
  3. Step 3: Cross multiply
    492,043,455.80x = 738,073,056.90 × 128,537,811.80
  4. Step 4: Simplify right side
    492,043,455.80x = 94,870,295,682,462,880
  5. Step 5: Solve for x
    x = 94,870,295,682,462,880/492,043,455.80
  6. Step 6: Final answer
    x = 192,808,774.44

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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.