Home / 13,410,619,947.50-18,500,840,432.24-7,982,111,672.42

Finding the Fourth Proportional to 13,410,619,947.50, 18,500,840,432.24 and 7,982,111,672.42

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Solution

The fourth proportional to 13,410,619,947.50, 18,500,840,432.24 and 7,982,111,672.42 is: 11,011,852,915.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,410,619,947.50 : 18,500,840,432.24 = 7,982,111,672.42 : x
  2. Step 2: Convert to fraction form
    13,410,619,947.50/18,500,840,432.24 = 7,982,111,672.42/x
  3. Step 3: Cross multiply
    13,410,619,947.50x = 18,500,840,432.24 × 7,982,111,672.42
  4. Step 4: Simplify right side
    13,410,619,947.50x = 147,675,774,363,762,786,304
  5. Step 5: Solve for x
    x = 147,675,774,363,762,786,304/13,410,619,947.50
  6. Step 6: Final answer
    x = 11,011,852,915.22

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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.