Home / 12,146,011,928.51-18,219,817,310.99-3,182,420,678.54

Finding the Fourth Proportional to 12,146,011,928.51, 18,219,817,310.99 and 3,182,420,678.54

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Solution

The fourth proportional to 12,146,011,928.51, 18,219,817,310.99 and 3,182,420,678.54 is: 4,773,840,476.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,146,011,928.51 : 18,219,817,310.99 = 3,182,420,678.54 : x
  2. Step 2: Convert to fraction form
    12,146,011,928.51/18,219,817,310.99 = 3,182,420,678.54/x
  3. Step 3: Cross multiply
    12,146,011,928.51x = 18,219,817,310.99 × 3,182,420,678.54
  4. Step 4: Simplify right side
    12,146,011,928.51x = 57,983,123,369,608,617,984
  5. Step 5: Solve for x
    x = 57,983,123,369,608,617,984/12,146,011,928.51
  6. Step 6: Final answer
    x = 4,773,840,476.27

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1.5x scale

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.