Home / 256,175,996,643.45-384,186,630,441.57-77,054,433,365.25

Finding the Fourth Proportional to 256,175,996,643.45, 384,186,630,441.57 and 77,054,433,365.25

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Solution

The fourth proportional to 256,175,996,643.45, 384,186,630,441.57 and 77,054,433,365.25 is: 115,558,379,797.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,175,996,643.45 : 384,186,630,441.57 = 77,054,433,365.25 : x
  2. Step 2: Convert to fraction form
    256,175,996,643.45/384,186,630,441.57 = 77,054,433,365.25/x
  3. Step 3: Cross multiply
    256,175,996,643.45x = 384,186,630,441.57 × 77,054,433,365.25
  4. Step 4: Simplify right side
    256,175,996,643.45x = 29,603,283,115,179,885,199,360
  5. Step 5: Solve for x
    x = 29,603,283,115,179,885,199,360/256,175,996,643.45
  6. Step 6: Final answer
    x = 115,558,379,797.71

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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.