Home / 145,216,161.60-200,398,344.75-79,136,678.04

Finding the Fourth Proportional to 145,216,161.60, 200,398,344.75 and 79,136,678.04

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Solution

The fourth proportional to 145,216,161.60, 200,398,344.75 and 79,136,678.04 is: 109,208,638.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,216,161.60 : 200,398,344.75 = 79,136,678.04 : x
  2. Step 2: Convert to fraction form
    145,216,161.60/200,398,344.75 = 79,136,678.04/x
  3. Step 3: Cross multiply
    145,216,161.60x = 200,398,344.75 × 79,136,678.04
  4. Step 4: Simplify right side
    145,216,161.60x = 15,858,859,288,229,676
  5. Step 5: Solve for x
    x = 15,858,859,288,229,676/145,216,161.60
  6. Step 6: Final answer
    x = 109,208,638.44

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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.