Home / 30,348,833.70-45,523,250.55-21,101,760.30

Finding the Fourth Proportional to 30,348,833.70, 45,523,250.55 and 21,101,760.30

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Solution

The fourth proportional to 30,348,833.70, 45,523,250.55 and 21,101,760.30 is: 31,652,640.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,348,833.70 : 45,523,250.55 = 21,101,760.30 : x
  2. Step 2: Convert to fraction form
    30,348,833.70/45,523,250.55 = 21,101,760.30/x
  3. Step 3: Cross multiply
    30,348,833.70x = 45,523,250.55 × 21,101,760.30
  4. Step 4: Simplify right side
    30,348,833.70x = 960,620,721,182,943.12
  5. Step 5: Solve for x
    x = 960,620,721,182,943.12/30,348,833.70
  6. Step 6: Final answer
    x = 31,652,640.45

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1.5x scale

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.