Home / 851,774,912.10-1,277,662,368.15-545,664,896.10

Finding the Fourth Proportional to 851,774,912.10, 1,277,662,368.15 and 545,664,896.10

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Solution

The fourth proportional to 851,774,912.10, 1,277,662,368.15 and 545,664,896.10 is: 818,497,344.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,774,912.10 : 1,277,662,368.15 = 545,664,896.10 : x
  2. Step 2: Convert to fraction form
    851,774,912.10/1,277,662,368.15 = 545,664,896.10/x
  3. Step 3: Cross multiply
    851,774,912.10x = 1,277,662,368.15 × 545,664,896.10
  4. Step 4: Simplify right side
    851,774,912.10x = 697,175,503,367,449,728
  5. Step 5: Solve for x
    x = 697,175,503,367,449,728/851,774,912.10
  6. Step 6: Final answer
    x = 818,497,344.15

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1.5x scale

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.