Home / 405,983,409.87-609,231,282.74-172,813,741.19

Finding the Fourth Proportional to 405,983,409.87, 609,231,282.74 and 172,813,741.19

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Solution

The fourth proportional to 405,983,409.87, 609,231,282.74 and 172,813,741.19 is: 259,329,654.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,983,409.87 : 609,231,282.74 = 172,813,741.19 : x
  2. Step 2: Convert to fraction form
    405,983,409.87/609,231,282.74 = 172,813,741.19/x
  3. Step 3: Cross multiply
    405,983,409.87x = 609,231,282.74 × 172,813,741.19
  4. Step 4: Simplify right side
    405,983,409.87x = 105,283,537,217,113,072
  5. Step 5: Solve for x
    x = 105,283,537,217,113,072/405,983,409.87
  6. Step 6: Final answer
    x = 259,329,654.01

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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.