Home / 515,082,354.61-772,628,202.51-146,617,162.06

Finding the Fourth Proportional to 515,082,354.61, 772,628,202.51 and 146,617,162.06

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Solution

The fourth proportional to 515,082,354.61, 772,628,202.51 and 146,617,162.06 is: 219,927,072.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,082,354.61 : 772,628,202.51 = 146,617,162.06 : x
  2. Step 2: Convert to fraction form
    515,082,354.61/772,628,202.51 = 146,617,162.06/x
  3. Step 3: Cross multiply
    515,082,354.61x = 772,628,202.51 × 146,617,162.06
  4. Step 4: Simplify right side
    515,082,354.61x = 113,280,554,379,535,168
  5. Step 5: Solve for x
    x = 113,280,554,379,535,168/515,082,354.61
  6. Step 6: Final answer
    x = 219,927,072.57

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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.