Home / 665,343,693.40-998,015,540.10-493,156,809.40

Finding the Fourth Proportional to 665,343,693.40, 998,015,540.10 and 493,156,809.40

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Solution

The fourth proportional to 665,343,693.40, 998,015,540.10 and 493,156,809.40 is: 739,735,214.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,343,693.40 : 998,015,540.10 = 493,156,809.40 : x
  2. Step 2: Convert to fraction form
    665,343,693.40/998,015,540.10 = 493,156,809.40/x
  3. Step 3: Cross multiply
    665,343,693.40x = 998,015,540.10 × 493,156,809.40
  4. Step 4: Simplify right side
    665,343,693.40x = 492,178,159,487,333,760
  5. Step 5: Solve for x
    x = 492,178,159,487,333,760/665,343,693.40
  6. Step 6: Final answer
    x = 739,735,214.10

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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.