Home / 664,306,799.40-996,460,199.10-492,119,915.40

Finding the Fourth Proportional to 664,306,799.40, 996,460,199.10 and 492,119,915.40

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Solution

The fourth proportional to 664,306,799.40, 996,460,199.10 and 492,119,915.40 is: 738,179,873.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,306,799.40 : 996,460,199.10 = 492,119,915.40 : x
  2. Step 2: Convert to fraction form
    664,306,799.40/996,460,199.10 = 492,119,915.40/x
  3. Step 3: Cross multiply
    664,306,799.40x = 996,460,199.10 × 492,119,915.40
  4. Step 4: Simplify right side
    664,306,799.40x = 490,377,908,880,559,168
  5. Step 5: Solve for x
    x = 490,377,908,880,559,168/664,306,799.40
  6. Step 6: Final answer
    x = 738,179,873.10

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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.