Home / 30,766,834.40-42,471,305.19-19,170,127.49

Finding the Fourth Proportional to 30,766,834.40, 42,471,305.19 and 19,170,127.49

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Solution

The fourth proportional to 30,766,834.40, 42,471,305.19 and 19,170,127.49 is: 26,462,921.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,766,834.40 : 42,471,305.19 = 19,170,127.49 : x
  2. Step 2: Convert to fraction form
    30,766,834.40/42,471,305.19 = 19,170,127.49/x
  3. Step 3: Cross multiply
    30,766,834.40x = 42,471,305.19 × 19,170,127.49
  4. Step 4: Simplify right side
    30,766,834.40x = 814,180,334,946,642.12
  5. Step 5: Solve for x
    x = 814,180,334,946,642.12/30,766,834.40
  6. Step 6: Final answer
    x = 26,462,921.88

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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.