Home / 20,474,856,875.70-30,712,285,313.55-18,107,606,085.30

Finding the Fourth Proportional to 20,474,856,875.70, 30,712,285,313.55 and 18,107,606,085.30

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Solution

The fourth proportional to 20,474,856,875.70, 30,712,285,313.55 and 18,107,606,085.30 is: 27,161,409,127.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,474,856,875.70 : 30,712,285,313.55 = 18,107,606,085.30 : x
  2. Step 2: Convert to fraction form
    20,474,856,875.70/30,712,285,313.55 = 18,107,606,085.30/x
  3. Step 3: Cross multiply
    20,474,856,875.70x = 30,712,285,313.55 × 18,107,606,085.30
  4. Step 4: Simplify right side
    20,474,856,875.70x = 556,125,964,437,107,769,344
  5. Step 5: Solve for x
    x = 556,125,964,437,107,769,344/20,474,856,875.70
  6. Step 6: Final answer
    x = 27,161,409,127.95

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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.