Home / 1,270,931,013.42-1,906,415,702.55-484,028,234.70

Finding the Fourth Proportional to 1,270,931,013.42, 1,906,415,702.55 and 484,028,234.70

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Solution

The fourth proportional to 1,270,931,013.42, 1,906,415,702.55 and 484,028,234.70 is: 726,049,657.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,270,931,013.42 : 1,906,415,702.55 = 484,028,234.70 : x
  2. Step 2: Convert to fraction form
    1,270,931,013.42/1,906,415,702.55 = 484,028,234.70/x
  3. Step 3: Cross multiply
    1,270,931,013.42x = 1,906,415,702.55 × 484,028,234.70
  4. Step 4: Simplify right side
    1,270,931,013.42x = 922,759,027,109,636,736
  5. Step 5: Solve for x
    x = 922,759,027,109,636,736/1,270,931,013.42
  6. Step 6: Final answer
    x = 726,049,657.59

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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.