Home / 129,802,330.71-194,729,477.76-47,921,706.81

Finding the Fourth Proportional to 129,802,330.71, 194,729,477.76 and 47,921,706.81

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Solution

The fourth proportional to 129,802,330.71, 194,729,477.76 and 47,921,706.81 is: 71,892,152.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,802,330.71 : 194,729,477.76 = 47,921,706.81 : x
  2. Step 2: Convert to fraction form
    129,802,330.71/194,729,477.76 = 47,921,706.81/x
  3. Step 3: Cross multiply
    129,802,330.71x = 194,729,477.76 × 47,921,706.81
  4. Step 4: Simplify right side
    129,802,330.71x = 9,331,768,940,479,136
  5. Step 5: Solve for x
    x = 9,331,768,940,479,136/129,802,330.71
  6. Step 6: Final answer
    x = 71,892,152.39

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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.