Home / 1,236,076,157.84-1,854,114,902.56-459,620,928.40

Finding the Fourth Proportional to 1,236,076,157.84, 1,854,114,902.56 and 459,620,928.40

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Solution

The fourth proportional to 1,236,076,157.84, 1,854,114,902.56 and 459,620,928.40 is: 689,431,640.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,236,076,157.84 : 1,854,114,902.56 = 459,620,928.40 : x
  2. Step 2: Convert to fraction form
    1,236,076,157.84/1,854,114,902.56 = 459,620,928.40/x
  3. Step 3: Cross multiply
    1,236,076,157.84x = 1,854,114,902.56 × 459,620,928.40
  4. Step 4: Simplify right side
    1,236,076,157.84x = 852,190,012,874,902,656
  5. Step 5: Solve for x
    x = 852,190,012,874,902,656/1,236,076,157.84
  6. Step 6: Final answer
    x = 689,431,640.17

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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.