Home / 129,479,816.40-194,163,737.40-64,758,613.20

Finding the Fourth Proportional to 129,479,816.40, 194,163,737.40 and 64,758,613.20

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Solution

The fourth proportional to 129,479,816.40, 194,163,737.40 and 64,758,613.20 is: 97,109,918.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,479,816.40 : 194,163,737.40 = 64,758,613.20 : x
  2. Step 2: Convert to fraction form
    129,479,816.40/194,163,737.40 = 64,758,613.20/x
  3. Step 3: Cross multiply
    129,479,816.40x = 194,163,737.40 × 64,758,613.20
  4. Step 4: Simplify right side
    129,479,816.40x = 12,573,774,367,752,974
  5. Step 5: Solve for x
    x = 12,573,774,367,752,974/129,479,816.40
  6. Step 6: Final answer
    x = 97,109,918.11

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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.