Home / 30,899,154.51-42,640,557.12-16,960,096.80

Finding the Fourth Proportional to 30,899,154.51, 42,640,557.12 and 16,960,096.80

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Solution

The fourth proportional to 30,899,154.51, 42,640,557.12 and 16,960,096.80 is: 23,404,782.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,899,154.51 : 42,640,557.12 = 16,960,096.80 : x
  2. Step 2: Convert to fraction form
    30,899,154.51/42,640,557.12 = 16,960,096.80/x
  3. Step 3: Cross multiply
    30,899,154.51x = 42,640,557.12 × 16,960,096.80
  4. Step 4: Simplify right side
    30,899,154.51x = 723,187,976,361,129.25
  5. Step 5: Solve for x
    x = 723,187,976,361,129.25/30,899,154.51
  6. Step 6: Final answer
    x = 23,404,782.03

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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.