Home / 776,088,825.60-1,164,294,979.20-258,680,006.40

Finding the Fourth Proportional to 776,088,825.60, 1,164,294,979.20 and 258,680,006.40

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Solution

The fourth proportional to 776,088,825.60, 1,164,294,979.20 and 258,680,006.40 is: 388,073,919.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    776,088,825.60 : 1,164,294,979.20 = 258,680,006.40 : x
  2. Step 2: Convert to fraction form
    776,088,825.60/1,164,294,979.20 = 258,680,006.40/x
  3. Step 3: Cross multiply
    776,088,825.60x = 1,164,294,979.20 × 258,680,006.40
  4. Step 4: Simplify right side
    776,088,825.60x = 301,179,832,670,943,872
  5. Step 5: Solve for x
    x = 301,179,832,670,943,872/776,088,825.60
  6. Step 6: Final answer
    x = 388,073,919.81

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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.