Home / 663,190,688.40-994,776,701.40-299,684,461.20

Finding the Fourth Proportional to 663,190,688.40, 994,776,701.40 and 299,684,461.20

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Solution

The fourth proportional to 663,190,688.40, 994,776,701.40 and 299,684,461.20 is: 449,522,475.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,190,688.40 : 994,776,701.40 = 299,684,461.20 : x
  2. Step 2: Convert to fraction form
    663,190,688.40/994,776,701.40 = 299,684,461.20/x
  3. Step 3: Cross multiply
    663,190,688.40x = 994,776,701.40 × 299,684,461.20
  4. Step 4: Simplify right side
    663,190,688.40x = 298,119,119,773,372,288
  5. Step 5: Solve for x
    x = 298,119,119,773,372,288/663,190,688.40
  6. Step 6: Final answer
    x = 449,522,475.19

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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.