Home / 129,758,722,705.82-194,694,017,763.81-70,055,530,972.68

Finding the Fourth Proportional to 129,758,722,705.82, 194,694,017,763.81 and 70,055,530,972.68

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Solution

The fourth proportional to 129,758,722,705.82, 194,694,017,763.81 and 70,055,530,972.68 is: 105,113,494,547.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,758,722,705.82 : 194,694,017,763.81 = 70,055,530,972.68 : x
  2. Step 2: Convert to fraction form
    129,758,722,705.82/194,694,017,763.81 = 70,055,530,972.68/x
  3. Step 3: Cross multiply
    129,758,722,705.82x = 194,694,017,763.81 × 70,055,530,972.68
  4. Step 4: Simplify right side
    129,758,722,705.82x = 13,639,392,791,648,100,417,536
  5. Step 5: Solve for x
    x = 13,639,392,791,648,100,417,536/129,758,722,705.82
  6. Step 6: Final answer
    x = 105,113,494,547.65

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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.