Home / 492,216,948.70-738,269,435.85-128,748,046.30

Finding the Fourth Proportional to 492,216,948.70, 738,269,435.85 and 128,748,046.30

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Solution

The fourth proportional to 492,216,948.70, 738,269,435.85 and 128,748,046.30 is: 193,107,425.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,216,948.70 : 738,269,435.85 = 128,748,046.30 : x
  2. Step 2: Convert to fraction form
    492,216,948.70/738,269,435.85 = 128,748,046.30/x
  3. Step 3: Cross multiply
    492,216,948.70x = 738,269,435.85 × 128,748,046.30
  4. Step 4: Simplify right side
    492,216,948.70x = 95,050,747,508,690,688
  5. Step 5: Solve for x
    x = 95,050,747,508,690,688/492,216,948.70
  6. Step 6: Final answer
    x = 193,107,425.01

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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.