Home / 70,240,376,164.72-105,381,261,314.80-28,295,657,520.88

Finding the Fourth Proportional to 70,240,376,164.72, 105,381,261,314.80 and 28,295,657,520.88

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Solution

The fourth proportional to 70,240,376,164.72, 105,381,261,314.80 and 28,295,657,520.88 is: 42,451,823,895.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,240,376,164.72 : 105,381,261,314.80 = 28,295,657,520.88 : x
  2. Step 2: Convert to fraction form
    70,240,376,164.72/105,381,261,314.80 = 28,295,657,520.88/x
  3. Step 3: Cross multiply
    70,240,376,164.72x = 105,381,261,314.80 × 28,295,657,520.88
  4. Step 4: Simplify right side
    70,240,376,164.72x = 2,981,832,079,281,941,381,120
  5. Step 5: Solve for x
    x = 2,981,832,079,281,941,381,120/70,240,376,164.72
  6. Step 6: Final answer
    x = 42,451,823,895.27

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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.