Home / 385,163,978,057.62-577,243,379,802.54-215,176,700,788.26

Finding the Fourth Proportional to 385,163,978,057.62, 577,243,379,802.54 and 215,176,700,788.26

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Solution

The fourth proportional to 385,163,978,057.62, 577,243,379,802.54 and 215,176,700,788.26 is: 322,484,274,474.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,163,978,057.62 : 577,243,379,802.54 = 215,176,700,788.26 : x
  2. Step 2: Convert to fraction form
    385,163,978,057.62/577,243,379,802.54 = 215,176,700,788.26/x
  3. Step 3: Cross multiply
    385,163,978,057.62x = 577,243,379,802.54 × 215,176,700,788.26
  4. Step 4: Simplify right side
    385,163,978,057.62x = 124,209,326,017,775,092,629,504
  5. Step 5: Solve for x
    x = 124,209,326,017,775,092,629,504/385,163,978,057.62
  6. Step 6: Final answer
    x = 322,484,274,474.89

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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.