Home / 492,043,408.80-738,072,986.40-128,537,764.80

Finding the Fourth Proportional to 492,043,408.80, 738,072,986.40 and 128,537,764.80

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Solution

The fourth proportional to 492,043,408.80, 738,072,986.40 and 128,537,764.80 is: 192,808,703.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,043,408.80 : 738,072,986.40 = 128,537,764.80 : x
  2. Step 2: Convert to fraction form
    492,043,408.80/738,072,986.40 = 128,537,764.80/x
  3. Step 3: Cross multiply
    492,043,408.80x = 738,072,986.40 × 128,537,764.80
  4. Step 4: Simplify right side
    492,043,408.80x = 94,870,251,931,116,800
  5. Step 5: Solve for x
    x = 94,870,251,931,116,800/492,043,408.80
  6. Step 6: Final answer
    x = 192,808,703.94

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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.