Home / 285,004,051.49-393,303,948.70-154,621,060.13

Finding the Fourth Proportional to 285,004,051.49, 393,303,948.70 and 154,621,060.13

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Solution

The fourth proportional to 285,004,051.49, 393,303,948.70 and 154,621,060.13 is: 213,376,171.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,004,051.49 : 393,303,948.70 = 154,621,060.13 : x
  2. Step 2: Convert to fraction form
    285,004,051.49/393,303,948.70 = 154,621,060.13/x
  3. Step 3: Cross multiply
    285,004,051.49x = 393,303,948.70 × 154,621,060.13
  4. Step 4: Simplify right side
    285,004,051.49x = 60,813,073,501,309,128
  5. Step 5: Solve for x
    x = 60,813,073,501,309,128/285,004,051.49
  6. Step 6: Final answer
    x = 213,376,171.96

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.