Home / 665,343,687.40-998,015,531.10-493,156,803.40

Finding the Fourth Proportional to 665,343,687.40, 998,015,531.10 and 493,156,803.40

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Solution

The fourth proportional to 665,343,687.40, 998,015,531.10 and 493,156,803.40 is: 739,735,205.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,343,687.40 : 998,015,531.10 = 493,156,803.40 : x
  2. Step 2: Convert to fraction form
    665,343,687.40/998,015,531.10 = 493,156,803.40/x
  3. Step 3: Cross multiply
    665,343,687.40x = 998,015,531.10 × 493,156,803.40
  4. Step 4: Simplify right side
    665,343,687.40x = 492,178,149,060,829,248
  5. Step 5: Solve for x
    x = 492,178,149,060,829,248/665,343,687.40
  6. Step 6: Final answer
    x = 739,735,205.10

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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.