Home / 1,578,946,901.40-2,178,860,400.04-864,344,214.40

Finding the Fourth Proportional to 1,578,946,901.40, 2,178,860,400.04 and 864,344,214.40

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Solution

The fourth proportional to 1,578,946,901.40, 2,178,860,400.04 and 864,344,214.40 is: 1,192,747,760.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,578,946,901.40 : 2,178,860,400.04 = 864,344,214.40 : x
  2. Step 2: Convert to fraction form
    1,578,946,901.40/2,178,860,400.04 = 864,344,214.40/x
  3. Step 3: Cross multiply
    1,578,946,901.40x = 2,178,860,400.04 × 864,344,214.40
  4. Step 4: Simplify right side
    1,578,946,901.40x = 1,883,285,380,759,843,328
  5. Step 5: Solve for x
    x = 1,883,285,380,759,843,328/1,578,946,901.40
  6. Step 6: Final answer
    x = 1,192,747,760.61

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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.