Home / 13,405,742,399.62-18,499,240,787.43-7,384,118,175.82

Finding the Fourth Proportional to 13,405,742,399.62, 18,499,240,787.43 and 7,384,118,175.82

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Solution

The fourth proportional to 13,405,742,399.62, 18,499,240,787.43 and 7,384,118,175.82 is: 10,189,706,475.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,405,742,399.62 : 18,499,240,787.43 = 7,384,118,175.82 : x
  2. Step 2: Convert to fraction form
    13,405,742,399.62/18,499,240,787.43 = 7,384,118,175.82/x
  3. Step 3: Cross multiply
    13,405,742,399.62x = 18,499,240,787.43 × 7,384,118,175.82
  4. Step 4: Simplify right side
    13,405,742,399.62x = 136,600,580,137,332,555,776
  5. Step 5: Solve for x
    x = 136,600,580,137,332,555,776/13,405,742,399.62
  6. Step 6: Final answer
    x = 10,189,706,475.43

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1.5x scale

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.