Home / 854,109,333.84-1,178,759,653.80-492,015,789.84

Finding the Fourth Proportional to 854,109,333.84, 1,178,759,653.80 and 492,015,789.84

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Solution

The fourth proportional to 854,109,333.84, 1,178,759,653.80 and 492,015,789.84 is: 679,032,928.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    854,109,333.84 : 1,178,759,653.80 = 492,015,789.84 : x
  2. Step 2: Convert to fraction form
    854,109,333.84/1,178,759,653.80 = 492,015,789.84/x
  3. Step 3: Cross multiply
    854,109,333.84x = 1,178,759,653.80 × 492,015,789.84
  4. Step 4: Simplify right side
    854,109,333.84x = 579,968,362,095,931,904
  5. Step 5: Solve for x
    x = 579,968,362,095,931,904/854,109,333.84
  6. Step 6: Final answer
    x = 679,032,928.36

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.