Home / 1,578,946,725.76-2,178,860,157.60-864,344,038.36

Finding the Fourth Proportional to 1,578,946,725.76, 2,178,860,157.60 and 864,344,038.36

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Solution

The fourth proportional to 1,578,946,725.76, 2,178,860,157.60 and 864,344,038.36 is: 1,192,747,517.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,578,946,725.76 : 2,178,860,157.60 = 864,344,038.36 : x
  2. Step 2: Convert to fraction form
    1,578,946,725.76/2,178,860,157.60 = 864,344,038.36/x
  3. Step 3: Cross multiply
    1,578,946,725.76x = 2,178,860,157.60 × 864,344,038.36
  4. Step 4: Simplify right side
    1,578,946,725.76x = 1,883,284,787,641,690,112
  5. Step 5: Solve for x
    x = 1,883,284,787,641,690,112/1,578,946,725.76
  6. Step 6: Final answer
    x = 1,192,747,517.64

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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.