Home / 278,839,094.88-384,878,985.60-186,019,373.76

Finding the Fourth Proportional to 278,839,094.88, 384,878,985.60 and 186,019,373.76

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Solution

The fourth proportional to 278,839,094.88, 384,878,985.60 and 186,019,373.76 is: 256,760,795.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,839,094.88 : 384,878,985.60 = 186,019,373.76 : x
  2. Step 2: Convert to fraction form
    278,839,094.88/384,878,985.60 = 186,019,373.76/x
  3. Step 3: Cross multiply
    278,839,094.88x = 384,878,985.60 × 186,019,373.76
  4. Step 4: Simplify right side
    278,839,094.88x = 71,594,947,874,696,056
  5. Step 5: Solve for x
    x = 71,594,947,874,696,056/278,839,094.88
  6. Step 6: Final answer
    x = 256,760,795.70

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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.