Home / 839,442,083.60-1,259,163,125.40-686,261,104.40

Finding the Fourth Proportional to 839,442,083.60, 1,259,163,125.40 and 686,261,104.40

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Solution

The fourth proportional to 839,442,083.60, 1,259,163,125.40 and 686,261,104.40 is: 1,029,391,656.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,442,083.60 : 1,259,163,125.40 = 686,261,104.40 : x
  2. Step 2: Convert to fraction form
    839,442,083.60/1,259,163,125.40 = 686,261,104.40/x
  3. Step 3: Cross multiply
    839,442,083.60x = 1,259,163,125.40 × 686,261,104.40
  4. Step 4: Simplify right side
    839,442,083.60x = 864,114,677,056,759,680
  5. Step 5: Solve for x
    x = 864,114,677,056,759,680/839,442,083.60
  6. Step 6: Final answer
    x = 1,029,391,656.60

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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.