Home / 145,216,355.28-200,398,611.78-79,136,871.72

Finding the Fourth Proportional to 145,216,355.28, 200,398,611.78 and 79,136,871.72

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Solution

The fourth proportional to 145,216,355.28, 200,398,611.78 and 79,136,871.72 is: 109,208,905.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,216,355.28 : 200,398,611.78 = 79,136,871.72 : x
  2. Step 2: Convert to fraction form
    145,216,355.28/200,398,611.78 = 79,136,871.72/x
  3. Step 3: Cross multiply
    145,216,355.28x = 200,398,611.78 × 79,136,871.72
  4. Step 4: Simplify right side
    145,216,355.28x = 15,858,919,233,299,940
  5. Step 5: Solve for x
    x = 15,858,919,233,299,940/145,216,355.28
  6. Step 6: Final answer
    x = 109,208,905.59

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.