Home / 129,479,973.40-194,163,972.90-64,758,770.20

Finding the Fourth Proportional to 129,479,973.40, 194,163,972.90 and 64,758,770.20

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Solution

The fourth proportional to 129,479,973.40, 194,163,972.90 and 64,758,770.20 is: 97,110,153.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,479,973.40 : 194,163,972.90 = 64,758,770.20 : x
  2. Step 2: Convert to fraction form
    129,479,973.40/194,163,972.90 = 64,758,770.20/x
  3. Step 3: Cross multiply
    129,479,973.40x = 194,163,972.90 × 64,758,770.20
  4. Step 4: Simplify right side
    129,479,973.40x = 12,573,820,102,150,128
  5. Step 5: Solve for x
    x = 12,573,820,102,150,128/129,479,973.40
  6. Step 6: Final answer
    x = 97,110,153.58

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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.